diff --git a/i18n/af.po b/i18n/af.po
index e9c0bbc5ae..183a78bd30 100644
--- a/i18n/af.po
+++ b/i18n/af.po
@@ -9,7 +9,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: Avogadro 1.90.0\n"
 "Report-Msgid-Bugs-To: avogadro-devel@lists.sourceforge.net\n"
-"POT-Creation-Date: 2024-03-07 04:05+0000\n"
+"POT-Creation-Date: 2024-06-30 02:14+0000\n"
 "PO-Revision-Date: 2021-06-19 13:34+0000\n"
 "Last-Translator: Nathan <bonnemainsnathan@gmail.com>\n"
 "Language-Team: Afrikaans <https://hosted.weblate.org/projects/avogadro/"
@@ -2831,7 +2831,7 @@ msgid "Render the force field visualizations for the atoms of the molecule."
 msgstr ""
 
 #: qtplugins/forcefield/forcefield.cpp:88
-#: qtplugins/forcefield/forcefield.cpp:333 qtplugins/openbabel/openbabel.cpp:47
+#: qtplugins/forcefield/forcefield.cpp:339 qtplugins/openbabel/openbabel.cpp:47
 #: qtplugins/openbabel/openbabel.cpp:559
 msgid "Optimize Geometry"
 msgstr ""
@@ -2856,13 +2856,9 @@ msgstr ""
 msgid "&Calculate"
 msgstr ""
 
-#: qtplugins/forcefield/forcefield.cpp:368
-#, qt-format
-msgid "%1 Energy = %L2"
-msgstr ""
-
-#: qtplugins/forcefield/forcefield.cpp:369
-#: qtplugins/forcefield/forcefield.cpp:415
+#: qtplugins/forcefield/forcefield.cpp:245
+#: qtplugins/forcefield/forcefield.cpp:375
+#: qtplugins/forcefield/forcefield.cpp:421
 #: qtplugins/playertool/playertool.cpp:347
 #: qtplugins/playertool/playertool.cpp:379 qtplugins/surfaces/surfaces.cpp:912
 #: qtplugins/surfaces/surfaces.cpp:956 qtplugins/surfaces/surfaces.cpp:968
@@ -2870,7 +2866,16 @@ msgstr ""
 msgid "Avogadro"
 msgstr ""
 
-#: qtplugins/forcefield/forcefield.cpp:414
+#: qtplugins/forcefield/forcefield.cpp:246
+msgid "No atoms provided for optimization"
+msgstr ""
+
+#: qtplugins/forcefield/forcefield.cpp:374
+#, qt-format
+msgid "%1 Energy = %L2"
+msgstr ""
+
+#: qtplugins/forcefield/forcefield.cpp:420
 #, qt-format
 msgid "%1 Force Norm = %L2"
 msgstr ""
@@ -7411,27 +7416,28 @@ msgstr ""
 msgid "18"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:434
+#. i18n: file: qtplugins/spectra/spectradialog.ui:437
 #. i18n: ectx: property (text), widget (QLabel, label_5)
-msgid "Line Size:"
+msgctxt "Size in pixels of the line drawing the spectra"
+msgid "Line Width:"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:507
+#. i18n: file: qtplugins/spectra/spectradialog.ui:510
 #. i18n: ectx: property (text), widget (QTableWidget, dataTable)
 msgid "x"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:512
+#. i18n: file: qtplugins/spectra/spectradialog.ui:515
 #. i18n: ectx: property (text), widget (QTableWidget, dataTable)
 msgid "y"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:526
+#. i18n: file: qtplugins/spectra/spectradialog.ui:529
 #. i18n: ectx: property (text), widget (QPushButton, push_options)
 msgid "&Options…"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:568
+#. i18n: file: qtplugins/spectra/spectradialog.ui:571
 #. i18n: ectx: property (toolTip), widget (Avogadro::VTK::ChartWidget, plot)
 msgid ""
 "Controls:\n"
diff --git a/i18n/ar.po b/i18n/ar.po
index 55e1144aaf..a4be8333db 100644
--- a/i18n/ar.po
+++ b/i18n/ar.po
@@ -7,7 +7,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: avogadro\n"
 "Report-Msgid-Bugs-To: avogadro-devel@lists.sourceforge.net\n"
-"POT-Creation-Date: 2024-03-07 04:05+0000\n"
+"POT-Creation-Date: 2024-06-30 02:14+0000\n"
 "PO-Revision-Date: 2021-06-16 17:34+0000\n"
 "Last-Translator: Lihan Zhu <zhulihan@seas.upenn.edu>\n"
 "Language-Team: Arabic <https://hosted.weblate.org/projects/avogadro/"
@@ -2888,7 +2888,7 @@ msgid "Render the force field visualizations for the atoms of the molecule."
 msgstr ""
 
 #: qtplugins/forcefield/forcefield.cpp:88
-#: qtplugins/forcefield/forcefield.cpp:333 qtplugins/openbabel/openbabel.cpp:47
+#: qtplugins/forcefield/forcefield.cpp:339 qtplugins/openbabel/openbabel.cpp:47
 #: qtplugins/openbabel/openbabel.cpp:559
 msgid "Optimize Geometry"
 msgstr ""
@@ -2915,14 +2915,9 @@ msgstr "ا&ختر"
 msgid "&Calculate"
 msgstr ""
 
-#: qtplugins/forcefield/forcefield.cpp:368
-#, fuzzy, qt-format
-#| msgid "Energy = %L1 %2"
-msgid "%1 Energy = %L2"
-msgstr "الطاقة = %L1 %2"
-
-#: qtplugins/forcefield/forcefield.cpp:369
-#: qtplugins/forcefield/forcefield.cpp:415
+#: qtplugins/forcefield/forcefield.cpp:245
+#: qtplugins/forcefield/forcefield.cpp:375
+#: qtplugins/forcefield/forcefield.cpp:421
 #: qtplugins/playertool/playertool.cpp:347
 #: qtplugins/playertool/playertool.cpp:379 qtplugins/surfaces/surfaces.cpp:912
 #: qtplugins/surfaces/surfaces.cpp:956 qtplugins/surfaces/surfaces.cpp:968
@@ -2930,7 +2925,17 @@ msgstr "الطاقة = %L1 %2"
 msgid "Avogadro"
 msgstr "أفوقادرو"
 
-#: qtplugins/forcefield/forcefield.cpp:414
+#: qtplugins/forcefield/forcefield.cpp:246
+msgid "No atoms provided for optimization"
+msgstr ""
+
+#: qtplugins/forcefield/forcefield.cpp:374
+#, fuzzy, qt-format
+#| msgid "Energy = %L1 %2"
+msgid "%1 Energy = %L2"
+msgstr "الطاقة = %L1 %2"
+
+#: qtplugins/forcefield/forcefield.cpp:420
 #, qt-format
 msgid "%1 Force Norm = %L2"
 msgstr ""
@@ -7616,27 +7621,28 @@ msgstr ""
 msgid "18"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:434
+#. i18n: file: qtplugins/spectra/spectradialog.ui:437
 #. i18n: ectx: property (text), widget (QLabel, label_5)
-msgid "Line Size:"
+msgctxt "Size in pixels of the line drawing the spectra"
+msgid "Line Width:"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:507
+#. i18n: file: qtplugins/spectra/spectradialog.ui:510
 #. i18n: ectx: property (text), widget (QTableWidget, dataTable)
 msgid "x"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:512
+#. i18n: file: qtplugins/spectra/spectradialog.ui:515
 #. i18n: ectx: property (text), widget (QTableWidget, dataTable)
 msgid "y"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:526
+#. i18n: file: qtplugins/spectra/spectradialog.ui:529
 #. i18n: ectx: property (text), widget (QPushButton, push_options)
 msgid "&Options…"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:568
+#. i18n: file: qtplugins/spectra/spectradialog.ui:571
 #. i18n: ectx: property (toolTip), widget (Avogadro::VTK::ChartWidget, plot)
 msgid ""
 "Controls:\n"
diff --git a/i18n/bg.po b/i18n/bg.po
index 59b32f739c..ec27f7e552 100644
--- a/i18n/bg.po
+++ b/i18n/bg.po
@@ -8,7 +8,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: avogadro\n"
 "Report-Msgid-Bugs-To: avogadro-devel@lists.sourceforge.net\n"
-"POT-Creation-Date: 2024-03-07 04:05+0000\n"
+"POT-Creation-Date: 2024-06-30 02:14+0000\n"
 "PO-Revision-Date: 2023-08-05 21:51+0000\n"
 "Last-Translator: Salif Mehmed <mail@salif.eu>\n"
 "Language-Team: Bulgarian <https://hosted.weblate.org/projects/avogadro/"
@@ -2888,7 +2888,7 @@ msgid "Render the force field visualizations for the atoms of the molecule."
 msgstr ""
 
 #: qtplugins/forcefield/forcefield.cpp:88
-#: qtplugins/forcefield/forcefield.cpp:333 qtplugins/openbabel/openbabel.cpp:47
+#: qtplugins/forcefield/forcefield.cpp:339 qtplugins/openbabel/openbabel.cpp:47
 #: qtplugins/openbabel/openbabel.cpp:559
 #, fuzzy
 msgid "Optimize Geometry"
@@ -2918,14 +2918,9 @@ msgstr "&Избиране"
 msgid "&Calculate"
 msgstr "Изчисляване на енергията"
 
-#: qtplugins/forcefield/forcefield.cpp:368
-#, fuzzy, qt-format
-#| msgid "Energy = %L1 %2"
-msgid "%1 Energy = %L2"
-msgstr "Енергия = %L1 %2"
-
-#: qtplugins/forcefield/forcefield.cpp:369
-#: qtplugins/forcefield/forcefield.cpp:415
+#: qtplugins/forcefield/forcefield.cpp:245
+#: qtplugins/forcefield/forcefield.cpp:375
+#: qtplugins/forcefield/forcefield.cpp:421
 #: qtplugins/playertool/playertool.cpp:347
 #: qtplugins/playertool/playertool.cpp:379 qtplugins/surfaces/surfaces.cpp:912
 #: qtplugins/surfaces/surfaces.cpp:956 qtplugins/surfaces/surfaces.cpp:968
@@ -2933,7 +2928,17 @@ msgstr "Енергия = %L1 %2"
 msgid "Avogadro"
 msgstr "Авогадро"
 
-#: qtplugins/forcefield/forcefield.cpp:414
+#: qtplugins/forcefield/forcefield.cpp:246
+msgid "No atoms provided for optimization"
+msgstr ""
+
+#: qtplugins/forcefield/forcefield.cpp:374
+#, fuzzy, qt-format
+#| msgid "Energy = %L1 %2"
+msgid "%1 Energy = %L2"
+msgstr "Енергия = %L1 %2"
+
+#: qtplugins/forcefield/forcefield.cpp:420
 #, qt-format
 msgid "%1 Force Norm = %L2"
 msgstr ""
@@ -7622,27 +7627,28 @@ msgstr ""
 msgid "18"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:434
+#. i18n: file: qtplugins/spectra/spectradialog.ui:437
 #. i18n: ectx: property (text), widget (QLabel, label_5)
-msgid "Line Size:"
+msgctxt "Size in pixels of the line drawing the spectra"
+msgid "Line Width:"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:507
+#. i18n: file: qtplugins/spectra/spectradialog.ui:510
 #. i18n: ectx: property (text), widget (QTableWidget, dataTable)
 msgid "x"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:512
+#. i18n: file: qtplugins/spectra/spectradialog.ui:515
 #. i18n: ectx: property (text), widget (QTableWidget, dataTable)
 msgid "y"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:526
+#. i18n: file: qtplugins/spectra/spectradialog.ui:529
 #. i18n: ectx: property (text), widget (QPushButton, push_options)
 msgid "&Options…"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:568
+#. i18n: file: qtplugins/spectra/spectradialog.ui:571
 #. i18n: ectx: property (toolTip), widget (Avogadro::VTK::ChartWidget, plot)
 msgid ""
 "Controls:\n"
diff --git a/i18n/bs.po b/i18n/bs.po
index dc4654740a..006d8f1842 100644
--- a/i18n/bs.po
+++ b/i18n/bs.po
@@ -7,7 +7,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: avogadro\n"
 "Report-Msgid-Bugs-To: avogadro-devel@lists.sourceforge.net\n"
-"POT-Creation-Date: 2024-03-07 04:05+0000\n"
+"POT-Creation-Date: 2024-06-30 02:14+0000\n"
 "PO-Revision-Date: 2021-07-12 15:33+0000\n"
 "Last-Translator: Emin Macanović <macanovic.emin@gmail.com>\n"
 "Language-Team: Bosnian <https://hosted.weblate.org/projects/avogadro/"
@@ -2943,7 +2943,7 @@ msgid "Render the force field visualizations for the atoms of the molecule."
 msgstr ""
 
 #: qtplugins/forcefield/forcefield.cpp:88
-#: qtplugins/forcefield/forcefield.cpp:333 qtplugins/openbabel/openbabel.cpp:47
+#: qtplugins/forcefield/forcefield.cpp:339 qtplugins/openbabel/openbabel.cpp:47
 #: qtplugins/openbabel/openbabel.cpp:559
 #, fuzzy
 msgid "Optimize Geometry"
@@ -2976,14 +2976,9 @@ msgstr "Učvrsti odabrane atome"
 msgid "&Calculate"
 msgstr "Izračunaj"
 
-#: qtplugins/forcefield/forcefield.cpp:368
-#, fuzzy, qt-format
-#| msgid "Energy = %L1 %2"
-msgid "%1 Energy = %L2"
-msgstr "Energija = %L1 %2"
-
-#: qtplugins/forcefield/forcefield.cpp:369
-#: qtplugins/forcefield/forcefield.cpp:415
+#: qtplugins/forcefield/forcefield.cpp:245
+#: qtplugins/forcefield/forcefield.cpp:375
+#: qtplugins/forcefield/forcefield.cpp:421
 #: qtplugins/playertool/playertool.cpp:347
 #: qtplugins/playertool/playertool.cpp:379 qtplugins/surfaces/surfaces.cpp:912
 #: qtplugins/surfaces/surfaces.cpp:956 qtplugins/surfaces/surfaces.cpp:968
@@ -2991,7 +2986,17 @@ msgstr "Energija = %L1 %2"
 msgid "Avogadro"
 msgstr "Avogadro"
 
-#: qtplugins/forcefield/forcefield.cpp:414
+#: qtplugins/forcefield/forcefield.cpp:246
+msgid "No atoms provided for optimization"
+msgstr ""
+
+#: qtplugins/forcefield/forcefield.cpp:374
+#, fuzzy, qt-format
+#| msgid "Energy = %L1 %2"
+msgid "%1 Energy = %L2"
+msgstr "Energija = %L1 %2"
+
+#: qtplugins/forcefield/forcefield.cpp:420
 #, qt-format
 msgid "%1 Force Norm = %L2"
 msgstr ""
@@ -7816,29 +7821,28 @@ msgstr ""
 msgid "18"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:434
+#. i18n: file: qtplugins/spectra/spectradialog.ui:437
 #. i18n: ectx: property (text), widget (QLabel, label_5)
-#, fuzzy
-#| msgid "Jump Size:"
-msgid "Line Size:"
-msgstr "Veličina skoka:"
+msgctxt "Size in pixels of the line drawing the spectra"
+msgid "Line Width:"
+msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:507
+#. i18n: file: qtplugins/spectra/spectradialog.ui:510
 #. i18n: ectx: property (text), widget (QTableWidget, dataTable)
 msgid "x"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:512
+#. i18n: file: qtplugins/spectra/spectradialog.ui:515
 #. i18n: ectx: property (text), widget (QTableWidget, dataTable)
 msgid "y"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:526
+#. i18n: file: qtplugins/spectra/spectradialog.ui:529
 #. i18n: ectx: property (text), widget (QPushButton, push_options)
 msgid "&Options…"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:568
+#. i18n: file: qtplugins/spectra/spectradialog.ui:571
 #. i18n: ectx: property (toolTip), widget (Avogadro::VTK::ChartWidget, plot)
 msgid ""
 "Controls:\n"
@@ -8443,6 +8447,11 @@ msgstr ""
 "net,,,,,avogadro-devel@lists.sourceforge.net,,,,,avogadro-devel@lists."
 "sourceforge.net,,"
 
+#, fuzzy
+#~| msgid "Jump Size:"
+#~ msgid "Line Size:"
+#~ msgstr "Veličina skoka:"
+
 #, fuzzy
 #~| msgid "Optimization"
 #~ msgid "Optimize"
diff --git a/i18n/ca.po b/i18n/ca.po
index 4b80b54a4f..b2c92c582f 100644
--- a/i18n/ca.po
+++ b/i18n/ca.po
@@ -10,7 +10,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: _avogadro-ca\n"
 "Report-Msgid-Bugs-To: avogadro-devel@lists.sourceforge.net\n"
-"POT-Creation-Date: 2024-03-07 04:05+0000\n"
+"POT-Creation-Date: 2024-06-30 02:14+0000\n"
 "PO-Revision-Date: 2023-03-20 18:38+0000\n"
 "Last-Translator: victor dargallo <victordargallo@disroot.org>\n"
 "Language-Team: Catalan <https://hosted.weblate.org/projects/avogadro/"
@@ -2962,7 +2962,7 @@ msgid "Render the force field visualizations for the atoms of the molecule."
 msgstr ""
 
 #: qtplugins/forcefield/forcefield.cpp:88
-#: qtplugins/forcefield/forcefield.cpp:333 qtplugins/openbabel/openbabel.cpp:47
+#: qtplugins/forcefield/forcefield.cpp:339 qtplugins/openbabel/openbabel.cpp:47
 #: qtplugins/openbabel/openbabel.cpp:559
 #, fuzzy
 msgid "Optimize Geometry"
@@ -2995,14 +2995,9 @@ msgstr "Fixa els àtoms seleccionats"
 msgid "&Calculate"
 msgstr "Calcula"
 
-#: qtplugins/forcefield/forcefield.cpp:368
-#, fuzzy, qt-format
-#| msgid "Energy = %L1 %2"
-msgid "%1 Energy = %L2"
-msgstr "Energia = %L1 %2"
-
-#: qtplugins/forcefield/forcefield.cpp:369
-#: qtplugins/forcefield/forcefield.cpp:415
+#: qtplugins/forcefield/forcefield.cpp:245
+#: qtplugins/forcefield/forcefield.cpp:375
+#: qtplugins/forcefield/forcefield.cpp:421
 #: qtplugins/playertool/playertool.cpp:347
 #: qtplugins/playertool/playertool.cpp:379 qtplugins/surfaces/surfaces.cpp:912
 #: qtplugins/surfaces/surfaces.cpp:956 qtplugins/surfaces/surfaces.cpp:968
@@ -3010,7 +3005,17 @@ msgstr "Energia = %L1 %2"
 msgid "Avogadro"
 msgstr "Avogadro"
 
-#: qtplugins/forcefield/forcefield.cpp:414
+#: qtplugins/forcefield/forcefield.cpp:246
+msgid "No atoms provided for optimization"
+msgstr ""
+
+#: qtplugins/forcefield/forcefield.cpp:374
+#, fuzzy, qt-format
+#| msgid "Energy = %L1 %2"
+msgid "%1 Energy = %L2"
+msgstr "Energia = %L1 %2"
+
+#: qtplugins/forcefield/forcefield.cpp:420
 #, qt-format
 msgid "%1 Force Norm = %L2"
 msgstr ""
@@ -7890,29 +7895,28 @@ msgstr ""
 msgid "18"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:434
+#. i18n: file: qtplugins/spectra/spectradialog.ui:437
 #. i18n: ectx: property (text), widget (QLabel, label_5)
-#, fuzzy
-#| msgid "Jump Size:"
-msgid "Line Size:"
-msgstr "Mida del salt:"
+msgctxt "Size in pixels of the line drawing the spectra"
+msgid "Line Width:"
+msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:507
+#. i18n: file: qtplugins/spectra/spectradialog.ui:510
 #. i18n: ectx: property (text), widget (QTableWidget, dataTable)
 msgid "x"
 msgstr "x"
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:512
+#. i18n: file: qtplugins/spectra/spectradialog.ui:515
 #. i18n: ectx: property (text), widget (QTableWidget, dataTable)
 msgid "y"
 msgstr "y"
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:526
+#. i18n: file: qtplugins/spectra/spectradialog.ui:529
 #. i18n: ectx: property (text), widget (QPushButton, push_options)
 msgid "&Options…"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:568
+#. i18n: file: qtplugins/spectra/spectradialog.ui:571
 #. i18n: ectx: property (toolTip), widget (Avogadro::VTK::ChartWidget, plot)
 msgid ""
 "Controls:\n"
@@ -8576,6 +8580,11 @@ msgstr ""
 "net,,david.planella@ubuntu.com,,,el.libre@gmail.com,,,avogadro-devel@lists."
 "sourceforge.net,,david.planella@gmail.com,,,el.libre@gmail.com"
 
+#, fuzzy
+#~| msgid "Jump Size:"
+#~ msgid "Line Size:"
+#~ msgstr "Mida del salt:"
+
 #, fuzzy
 #~| msgid "Optimization"
 #~ msgid "Optimize"
diff --git a/i18n/ca@valencia.po b/i18n/ca@valencia.po
index 4e5f0dd908..ace5715f3a 100644
--- a/i18n/ca@valencia.po
+++ b/i18n/ca@valencia.po
@@ -9,7 +9,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: _avogadro-ca\n"
 "Report-Msgid-Bugs-To: avogadro-devel@lists.sourceforge.net\n"
-"POT-Creation-Date: 2024-03-07 04:05+0000\n"
+"POT-Creation-Date: 2024-06-30 02:14+0000\n"
 "PO-Revision-Date: 2016-06-10 06:28+0000\n"
 "Last-Translator: Avogadro Team <avogadro-devel@lists.sourceforge.net>\n"
 "Language-Team: Catalan (Valencia) <ca@li.org>\n"
@@ -2955,7 +2955,7 @@ msgid "Render the force field visualizations for the atoms of the molecule."
 msgstr ""
 
 #: qtplugins/forcefield/forcefield.cpp:88
-#: qtplugins/forcefield/forcefield.cpp:333 qtplugins/openbabel/openbabel.cpp:47
+#: qtplugins/forcefield/forcefield.cpp:339 qtplugins/openbabel/openbabel.cpp:47
 #: qtplugins/openbabel/openbabel.cpp:559
 #, fuzzy
 msgid "Optimize Geometry"
@@ -2988,14 +2988,9 @@ msgstr "Fixa els àtoms seleccionats"
 msgid "&Calculate"
 msgstr "Calcula"
 
-#: qtplugins/forcefield/forcefield.cpp:368
-#, fuzzy, qt-format
-#| msgid "Energy = %L1 %2"
-msgid "%1 Energy = %L2"
-msgstr "Energia = %L1 %2"
-
-#: qtplugins/forcefield/forcefield.cpp:369
-#: qtplugins/forcefield/forcefield.cpp:415
+#: qtplugins/forcefield/forcefield.cpp:245
+#: qtplugins/forcefield/forcefield.cpp:375
+#: qtplugins/forcefield/forcefield.cpp:421
 #: qtplugins/playertool/playertool.cpp:347
 #: qtplugins/playertool/playertool.cpp:379 qtplugins/surfaces/surfaces.cpp:912
 #: qtplugins/surfaces/surfaces.cpp:956 qtplugins/surfaces/surfaces.cpp:968
@@ -3003,7 +2998,17 @@ msgstr "Energia = %L1 %2"
 msgid "Avogadro"
 msgstr "Avogadro"
 
-#: qtplugins/forcefield/forcefield.cpp:414
+#: qtplugins/forcefield/forcefield.cpp:246
+msgid "No atoms provided for optimization"
+msgstr ""
+
+#: qtplugins/forcefield/forcefield.cpp:374
+#, fuzzy, qt-format
+#| msgid "Energy = %L1 %2"
+msgid "%1 Energy = %L2"
+msgstr "Energia = %L1 %2"
+
+#: qtplugins/forcefield/forcefield.cpp:420
 #, qt-format
 msgid "%1 Force Norm = %L2"
 msgstr ""
@@ -7844,29 +7849,28 @@ msgstr ""
 msgid "18"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:434
+#. i18n: file: qtplugins/spectra/spectradialog.ui:437
 #. i18n: ectx: property (text), widget (QLabel, label_5)
-#, fuzzy
-#| msgid "Jump Size:"
-msgid "Line Size:"
-msgstr "Mida del salt:"
+msgctxt "Size in pixels of the line drawing the spectra"
+msgid "Line Width:"
+msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:507
+#. i18n: file: qtplugins/spectra/spectradialog.ui:510
 #. i18n: ectx: property (text), widget (QTableWidget, dataTable)
 msgid "x"
 msgstr "x"
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:512
+#. i18n: file: qtplugins/spectra/spectradialog.ui:515
 #. i18n: ectx: property (text), widget (QTableWidget, dataTable)
 msgid "y"
 msgstr "y"
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:526
+#. i18n: file: qtplugins/spectra/spectradialog.ui:529
 #. i18n: ectx: property (text), widget (QPushButton, push_options)
 msgid "&Options…"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:568
+#. i18n: file: qtplugins/spectra/spectradialog.ui:571
 #. i18n: ectx: property (toolTip), widget (Avogadro::VTK::ChartWidget, plot)
 msgid ""
 "Controls:\n"
@@ -8481,6 +8485,11 @@ msgstr ""
 "devel@lists.sourceforge.net,,el.libre@gmail.com,,,avogadro-devel@lists."
 "sourceforge.net,,el.libre@gmail.com"
 
+#, fuzzy
+#~| msgid "Jump Size:"
+#~ msgid "Line Size:"
+#~ msgstr "Mida del salt:"
+
 #, fuzzy
 #~| msgid "Optimization"
 #~ msgid "Optimize"
diff --git a/i18n/cs.po b/i18n/cs.po
index 4fc14c5f37..a249caac1e 100644
--- a/i18n/cs.po
+++ b/i18n/cs.po
@@ -10,7 +10,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: avogadro\n"
 "Report-Msgid-Bugs-To: avogadro-devel@lists.sourceforge.net\n"
-"POT-Creation-Date: 2024-03-07 04:05+0000\n"
+"POT-Creation-Date: 2024-06-30 02:14+0000\n"
 "PO-Revision-Date: 2023-10-31 11:02+0000\n"
 "Last-Translator: Martin Slavík <martin.d.slavik@gmail.com>\n"
 "Language-Team: Czech <https://hosted.weblate.org/projects/avogadro/"
@@ -3016,7 +3016,7 @@ msgid "Render the force field visualizations for the atoms of the molecule."
 msgstr ""
 
 #: qtplugins/forcefield/forcefield.cpp:88
-#: qtplugins/forcefield/forcefield.cpp:333 qtplugins/openbabel/openbabel.cpp:47
+#: qtplugins/forcefield/forcefield.cpp:339 qtplugins/openbabel/openbabel.cpp:47
 #: qtplugins/openbabel/openbabel.cpp:559
 #, fuzzy
 msgid "Optimize Geometry"
@@ -3049,14 +3049,9 @@ msgstr "Upevnit vybrané atomy"
 msgid "&Calculate"
 msgstr "Vypočítat"
 
-#: qtplugins/forcefield/forcefield.cpp:368
-#, fuzzy, qt-format
-#| msgid "Energy = %L1 %2"
-msgid "%1 Energy = %L2"
-msgstr "Energie = %L1 %2"
-
-#: qtplugins/forcefield/forcefield.cpp:369
-#: qtplugins/forcefield/forcefield.cpp:415
+#: qtplugins/forcefield/forcefield.cpp:245
+#: qtplugins/forcefield/forcefield.cpp:375
+#: qtplugins/forcefield/forcefield.cpp:421
 #: qtplugins/playertool/playertool.cpp:347
 #: qtplugins/playertool/playertool.cpp:379 qtplugins/surfaces/surfaces.cpp:912
 #: qtplugins/surfaces/surfaces.cpp:956 qtplugins/surfaces/surfaces.cpp:968
@@ -3064,7 +3059,17 @@ msgstr "Energie = %L1 %2"
 msgid "Avogadro"
 msgstr "Avogadro"
 
-#: qtplugins/forcefield/forcefield.cpp:414
+#: qtplugins/forcefield/forcefield.cpp:246
+msgid "No atoms provided for optimization"
+msgstr ""
+
+#: qtplugins/forcefield/forcefield.cpp:374
+#, fuzzy, qt-format
+#| msgid "Energy = %L1 %2"
+msgid "%1 Energy = %L2"
+msgstr "Energie = %L1 %2"
+
+#: qtplugins/forcefield/forcefield.cpp:420
 #, qt-format
 msgid "%1 Force Norm = %L2"
 msgstr ""
@@ -7995,29 +8000,28 @@ msgstr ""
 msgid "18"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:434
+#. i18n: file: qtplugins/spectra/spectradialog.ui:437
 #. i18n: ectx: property (text), widget (QLabel, label_5)
-#, fuzzy
-#| msgid "Jump Size:"
-msgid "Line Size:"
-msgstr "Velikost skoku:"
+msgctxt "Size in pixels of the line drawing the spectra"
+msgid "Line Width:"
+msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:507
+#. i18n: file: qtplugins/spectra/spectradialog.ui:510
 #. i18n: ectx: property (text), widget (QTableWidget, dataTable)
 msgid "x"
 msgstr "x"
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:512
+#. i18n: file: qtplugins/spectra/spectradialog.ui:515
 #. i18n: ectx: property (text), widget (QTableWidget, dataTable)
 msgid "y"
 msgstr "y"
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:526
+#. i18n: file: qtplugins/spectra/spectradialog.ui:529
 #. i18n: ectx: property (text), widget (QPushButton, push_options)
 msgid "&Options…"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:568
+#. i18n: file: qtplugins/spectra/spectradialog.ui:571
 #. i18n: ectx: property (toolTip), widget (Avogadro::VTK::ChartWidget, plot)
 msgid ""
 "Controls:\n"
@@ -8673,6 +8677,11 @@ msgstr ""
 "pavelfric@seznam.cz,,,avogadro-devel@lists.sourceforge.net,,,,,,,"
 "pavelfric@seznam.cz"
 
+#, fuzzy
+#~| msgid "Jump Size:"
+#~ msgid "Line Size:"
+#~ msgstr "Velikost skoku:"
+
 #, fuzzy
 #~| msgid "Optimization"
 #~ msgid "Optimize"
diff --git a/i18n/da.po b/i18n/da.po
index d1ae428c21..75b9b39ba9 100644
--- a/i18n/da.po
+++ b/i18n/da.po
@@ -7,7 +7,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: avogadro\n"
 "Report-Msgid-Bugs-To: avogadro-devel@lists.sourceforge.net\n"
-"POT-Creation-Date: 2024-03-07 04:05+0000\n"
+"POT-Creation-Date: 2024-06-30 02:14+0000\n"
 "PO-Revision-Date: 2016-06-10 06:28+0000\n"
 "Last-Translator: jvd <jvd@tuta.io>\n"
 "Language-Team: Danish <da@li.org>\n"
@@ -2942,7 +2942,7 @@ msgid "Render the force field visualizations for the atoms of the molecule."
 msgstr ""
 
 #: qtplugins/forcefield/forcefield.cpp:88
-#: qtplugins/forcefield/forcefield.cpp:333 qtplugins/openbabel/openbabel.cpp:47
+#: qtplugins/forcefield/forcefield.cpp:339 qtplugins/openbabel/openbabel.cpp:47
 #: qtplugins/openbabel/openbabel.cpp:559
 #, fuzzy
 msgid "Optimize Geometry"
@@ -2975,14 +2975,9 @@ msgstr "Ret valgte atomer"
 msgid "&Calculate"
 msgstr "Udregn energi"
 
-#: qtplugins/forcefield/forcefield.cpp:368
-#, fuzzy, qt-format
-#| msgid "Energy = %L1 %2"
-msgid "%1 Energy = %L2"
-msgstr "Energi = %L1 %2"
-
-#: qtplugins/forcefield/forcefield.cpp:369
-#: qtplugins/forcefield/forcefield.cpp:415
+#: qtplugins/forcefield/forcefield.cpp:245
+#: qtplugins/forcefield/forcefield.cpp:375
+#: qtplugins/forcefield/forcefield.cpp:421
 #: qtplugins/playertool/playertool.cpp:347
 #: qtplugins/playertool/playertool.cpp:379 qtplugins/surfaces/surfaces.cpp:912
 #: qtplugins/surfaces/surfaces.cpp:956 qtplugins/surfaces/surfaces.cpp:968
@@ -2990,7 +2985,17 @@ msgstr "Energi = %L1 %2"
 msgid "Avogadro"
 msgstr "Avogadro"
 
-#: qtplugins/forcefield/forcefield.cpp:414
+#: qtplugins/forcefield/forcefield.cpp:246
+msgid "No atoms provided for optimization"
+msgstr ""
+
+#: qtplugins/forcefield/forcefield.cpp:374
+#, fuzzy, qt-format
+#| msgid "Energy = %L1 %2"
+msgid "%1 Energy = %L2"
+msgstr "Energi = %L1 %2"
+
+#: qtplugins/forcefield/forcefield.cpp:420
 #, qt-format
 msgid "%1 Force Norm = %L2"
 msgstr ""
@@ -7791,27 +7796,28 @@ msgstr ""
 msgid "18"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:434
+#. i18n: file: qtplugins/spectra/spectradialog.ui:437
 #. i18n: ectx: property (text), widget (QLabel, label_5)
-msgid "Line Size:"
+msgctxt "Size in pixels of the line drawing the spectra"
+msgid "Line Width:"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:507
+#. i18n: file: qtplugins/spectra/spectradialog.ui:510
 #. i18n: ectx: property (text), widget (QTableWidget, dataTable)
 msgid "x"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:512
+#. i18n: file: qtplugins/spectra/spectradialog.ui:515
 #. i18n: ectx: property (text), widget (QTableWidget, dataTable)
 msgid "y"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:526
+#. i18n: file: qtplugins/spectra/spectradialog.ui:529
 #. i18n: ectx: property (text), widget (QPushButton, push_options)
 msgid "&Options…"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:568
+#. i18n: file: qtplugins/spectra/spectradialog.ui:571
 #. i18n: ectx: property (toolTip), widget (Avogadro::VTK::ChartWidget, plot)
 msgid ""
 "Controls:\n"
diff --git a/i18n/de.po b/i18n/de.po
index c5e606c21f..09064eb868 100644
--- a/i18n/de.po
+++ b/i18n/de.po
@@ -14,7 +14,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: _avogadro-de\n"
 "Report-Msgid-Bugs-To: avogadro-devel@lists.sourceforge.net\n"
-"POT-Creation-Date: 2024-03-07 04:05+0000\n"
+"POT-Creation-Date: 2024-06-30 02:14+0000\n"
 "PO-Revision-Date: 2024-06-12 14:43+0000\n"
 "Last-Translator: LibreTranslate <noreply-mt-libretranslate@weblate.org>\n"
 "Language-Team: German <https://hosted.weblate.org/projects/avogadro/"
@@ -2982,7 +2982,7 @@ msgid "Render the force field visualizations for the atoms of the molecule."
 msgstr ""
 
 #: qtplugins/forcefield/forcefield.cpp:88
-#: qtplugins/forcefield/forcefield.cpp:333 qtplugins/openbabel/openbabel.cpp:47
+#: qtplugins/forcefield/forcefield.cpp:339 qtplugins/openbabel/openbabel.cpp:47
 #: qtplugins/openbabel/openbabel.cpp:559
 msgid "Optimize Geometry"
 msgstr "Geometrie optimieren"
@@ -3015,13 +3015,9 @@ msgstr "Ausgewählte Atome verbinden"
 msgid "&Calculate"
 msgstr "Berechnen"
 
-#: qtplugins/forcefield/forcefield.cpp:368
-#, qt-format
-msgid "%1 Energy = %L2"
-msgstr "%1 Energie = %L2"
-
-#: qtplugins/forcefield/forcefield.cpp:369
-#: qtplugins/forcefield/forcefield.cpp:415
+#: qtplugins/forcefield/forcefield.cpp:245
+#: qtplugins/forcefield/forcefield.cpp:375
+#: qtplugins/forcefield/forcefield.cpp:421
 #: qtplugins/playertool/playertool.cpp:347
 #: qtplugins/playertool/playertool.cpp:379 qtplugins/surfaces/surfaces.cpp:912
 #: qtplugins/surfaces/surfaces.cpp:956 qtplugins/surfaces/surfaces.cpp:968
@@ -3029,7 +3025,16 @@ msgstr "%1 Energie = %L2"
 msgid "Avogadro"
 msgstr "Avogadro"
 
-#: qtplugins/forcefield/forcefield.cpp:414
+#: qtplugins/forcefield/forcefield.cpp:246
+msgid "No atoms provided for optimization"
+msgstr ""
+
+#: qtplugins/forcefield/forcefield.cpp:374
+#, qt-format
+msgid "%1 Energy = %L2"
+msgstr "%1 Energie = %L2"
+
+#: qtplugins/forcefield/forcefield.cpp:420
 #, qt-format
 msgid "%1 Force Norm = %L2"
 msgstr ""
@@ -7776,29 +7781,28 @@ msgstr ""
 msgid "18"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:434
+#. i18n: file: qtplugins/spectra/spectradialog.ui:437
 #. i18n: ectx: property (text), widget (QLabel, label_5)
-#, fuzzy
-#| msgid "Line width:"
-msgid "Line Size:"
-msgstr "Linienbreite:"
+msgctxt "Size in pixels of the line drawing the spectra"
+msgid "Line Width:"
+msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:507
+#. i18n: file: qtplugins/spectra/spectradialog.ui:510
 #. i18n: ectx: property (text), widget (QTableWidget, dataTable)
 msgid "x"
 msgstr "x"
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:512
+#. i18n: file: qtplugins/spectra/spectradialog.ui:515
 #. i18n: ectx: property (text), widget (QTableWidget, dataTable)
 msgid "y"
 msgstr "y"
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:526
+#. i18n: file: qtplugins/spectra/spectradialog.ui:529
 #. i18n: ectx: property (text), widget (QPushButton, push_options)
 msgid "&Options…"
 msgstr "Optionen …"
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:568
+#. i18n: file: qtplugins/spectra/spectradialog.ui:571
 #. i18n: ectx: property (toolTip), widget (Avogadro::VTK::ChartWidget, plot)
 msgid ""
 "Controls:\n"
@@ -8420,13 +8424,17 @@ msgstr ""
 msgctxt "EMAIL OF TRANSLATORS"
 msgid "Your emails"
 msgstr ""
-",,,erik_hahn@gmx.de,,,,armin_mohring@web.de,michael.kogan@gmx."
-"net,steve@steve-m.de,loniedavid@gmail.com,,,soc@krg-nw.de,,,aleixosk@gmail."
-"com,,avogadro-devel@lists.sourceforge.net,d@winzen4."
-"de,,,,,,,,armin_mohring@web.de,,,,coolx67@gmx.at,,,,,,,,simon@ochsenreither."
-"de,,,aleixosk@gmail.com,,avogadro-devel@lists.sourceforge."
-"net,,,,,,,,,armin_mohring@web.de,,,,coolx67@gmx.at,,,,tobannert@gmail."
-"com,,,,simon@ochsenreither.de"
+",,,erik_hahn@gmx.de,,,,armin_mohring@web.de,michael.kogan@gmx.net,"
+"steve@steve-m.de,loniedavid@gmail.com,,,soc@krg-nw.de,,,aleixosk@gmail.com,,"
+"avogadro-devel@lists.sourceforge.net,d@winzen4.de,,,,,,,,armin_mohring@web."
+"de,,,,coolx67@gmx.at,,,,,,,,simon@ochsenreither.de,,,aleixosk@gmail.com,,"
+"avogadro-devel@lists.sourceforge.net,,,,,,,,,armin_mohring@web.de,,,,"
+"coolx67@gmx.at,,,,tobannert@gmail.com,,,,simon@ochsenreither.de"
+
+#, fuzzy
+#~| msgid "Line width:"
+#~ msgid "Line Size:"
+#~ msgstr "Linienbreite:"
 
 #, fuzzy
 #~| msgid "Optimization"
diff --git a/i18n/el.po b/i18n/el.po
index 7c279085bd..89dc4e2b77 100644
--- a/i18n/el.po
+++ b/i18n/el.po
@@ -8,7 +8,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: avogadro\n"
 "Report-Msgid-Bugs-To: avogadro-devel@lists.sourceforge.net\n"
-"POT-Creation-Date: 2024-03-07 04:05+0000\n"
+"POT-Creation-Date: 2024-06-30 02:14+0000\n"
 "PO-Revision-Date: 2021-02-13 01:19+0000\n"
 "Last-Translator: Michalis <michalisntovas@yahoo.gr>\n"
 "Language-Team: Greek <https://hosted.weblate.org/projects/avogadro/"
@@ -3014,7 +3014,7 @@ msgid "Render the force field visualizations for the atoms of the molecule."
 msgstr ""
 
 #: qtplugins/forcefield/forcefield.cpp:88
-#: qtplugins/forcefield/forcefield.cpp:333 qtplugins/openbabel/openbabel.cpp:47
+#: qtplugins/forcefield/forcefield.cpp:339 qtplugins/openbabel/openbabel.cpp:47
 #: qtplugins/openbabel/openbabel.cpp:559
 #, fuzzy
 msgid "Optimize Geometry"
@@ -3047,14 +3047,9 @@ msgstr "Ορισμός επιλεγμένων ατόμων"
 msgid "&Calculate"
 msgstr "Υπολογισμός"
 
-#: qtplugins/forcefield/forcefield.cpp:368
-#, fuzzy, qt-format
-#| msgid "Energy = %L1 %2"
-msgid "%1 Energy = %L2"
-msgstr "Ενέργεια = %L1 %2"
-
-#: qtplugins/forcefield/forcefield.cpp:369
-#: qtplugins/forcefield/forcefield.cpp:415
+#: qtplugins/forcefield/forcefield.cpp:245
+#: qtplugins/forcefield/forcefield.cpp:375
+#: qtplugins/forcefield/forcefield.cpp:421
 #: qtplugins/playertool/playertool.cpp:347
 #: qtplugins/playertool/playertool.cpp:379 qtplugins/surfaces/surfaces.cpp:912
 #: qtplugins/surfaces/surfaces.cpp:956 qtplugins/surfaces/surfaces.cpp:968
@@ -3062,7 +3057,17 @@ msgstr "Ενέργεια = %L1 %2"
 msgid "Avogadro"
 msgstr "Avogadro"
 
-#: qtplugins/forcefield/forcefield.cpp:414
+#: qtplugins/forcefield/forcefield.cpp:246
+msgid "No atoms provided for optimization"
+msgstr ""
+
+#: qtplugins/forcefield/forcefield.cpp:374
+#, fuzzy, qt-format
+#| msgid "Energy = %L1 %2"
+msgid "%1 Energy = %L2"
+msgstr "Ενέργεια = %L1 %2"
+
+#: qtplugins/forcefield/forcefield.cpp:420
 #, qt-format
 msgid "%1 Force Norm = %L2"
 msgstr ""
@@ -8000,29 +8005,28 @@ msgstr ""
 msgid "18"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:434
+#. i18n: file: qtplugins/spectra/spectradialog.ui:437
 #. i18n: ectx: property (text), widget (QLabel, label_5)
-#, fuzzy
-#| msgid "Jump Size:"
-msgid "Line Size:"
-msgstr "Μέγεθος άλματος:"
+msgctxt "Size in pixels of the line drawing the spectra"
+msgid "Line Width:"
+msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:507
+#. i18n: file: qtplugins/spectra/spectradialog.ui:510
 #. i18n: ectx: property (text), widget (QTableWidget, dataTable)
 msgid "x"
 msgstr "x"
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:512
+#. i18n: file: qtplugins/spectra/spectradialog.ui:515
 #. i18n: ectx: property (text), widget (QTableWidget, dataTable)
 msgid "y"
 msgstr "y"
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:526
+#. i18n: file: qtplugins/spectra/spectradialog.ui:529
 #. i18n: ectx: property (text), widget (QPushButton, push_options)
 msgid "&Options…"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:568
+#. i18n: file: qtplugins/spectra/spectradialog.ui:571
 #. i18n: ectx: property (toolTip), widget (Avogadro::VTK::ChartWidget, plot)
 msgid ""
 "Controls:\n"
@@ -8669,6 +8673,11 @@ msgstr ""
 "angelosarn@hotmail.com,a.brzns@gmail.com,,elkosmas@gmail.com,,"
 "athmakrigiannis@gmail.com"
 
+#, fuzzy
+#~| msgid "Jump Size:"
+#~ msgid "Line Size:"
+#~ msgstr "Μέγεθος άλματος:"
+
 #, fuzzy
 #~| msgid "Optimization"
 #~ msgid "Optimize"
diff --git a/i18n/en_AU.po b/i18n/en_AU.po
index 2b3512a985..07efb8a992 100644
--- a/i18n/en_AU.po
+++ b/i18n/en_AU.po
@@ -10,7 +10,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: _avogadro-en_GB\n"
 "Report-Msgid-Bugs-To: avogadro-devel@lists.sourceforge.net\n"
-"POT-Creation-Date: 2024-03-07 04:05+0000\n"
+"POT-Creation-Date: 2024-06-30 02:14+0000\n"
 "PO-Revision-Date: 2023-11-08 19:34+0000\n"
 "Last-Translator: matterhorn103 <milner94@live.co.uk>\n"
 "Language-Team: English (United Kingdom) <https://hosted.weblate.org/projects/"
@@ -2937,7 +2937,7 @@ msgid "Render the force field visualizations for the atoms of the molecule."
 msgstr "Render the force field visualizations for the atoms of the molecule."
 
 #: qtplugins/forcefield/forcefield.cpp:88
-#: qtplugins/forcefield/forcefield.cpp:333 qtplugins/openbabel/openbabel.cpp:47
+#: qtplugins/forcefield/forcefield.cpp:339 qtplugins/openbabel/openbabel.cpp:47
 #: qtplugins/openbabel/openbabel.cpp:559
 msgid "Optimize Geometry"
 msgstr "&Optimize Geometry"
@@ -2962,13 +2962,9 @@ msgstr "Unfreeze Selected Atoms"
 msgid "&Calculate"
 msgstr "&Calculate"
 
-#: qtplugins/forcefield/forcefield.cpp:368
-#, qt-format
-msgid "%1 Energy = %L2"
-msgstr "%1 Energy = %L2"
-
-#: qtplugins/forcefield/forcefield.cpp:369
-#: qtplugins/forcefield/forcefield.cpp:415
+#: qtplugins/forcefield/forcefield.cpp:245
+#: qtplugins/forcefield/forcefield.cpp:375
+#: qtplugins/forcefield/forcefield.cpp:421
 #: qtplugins/playertool/playertool.cpp:347
 #: qtplugins/playertool/playertool.cpp:379 qtplugins/surfaces/surfaces.cpp:912
 #: qtplugins/surfaces/surfaces.cpp:956 qtplugins/surfaces/surfaces.cpp:968
@@ -2976,7 +2972,16 @@ msgstr "%1 Energy = %L2"
 msgid "Avogadro"
 msgstr "Avogadro"
 
-#: qtplugins/forcefield/forcefield.cpp:414
+#: qtplugins/forcefield/forcefield.cpp:246
+msgid "No atoms provided for optimization"
+msgstr ""
+
+#: qtplugins/forcefield/forcefield.cpp:374
+#, qt-format
+msgid "%1 Energy = %L2"
+msgstr "%1 Energy = %L2"
+
+#: qtplugins/forcefield/forcefield.cpp:420
 #, qt-format
 msgid "%1 Force Norm = %L2"
 msgstr ""
@@ -7745,31 +7750,30 @@ msgstr ""
 msgid "18"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:434
+#. i18n: file: qtplugins/spectra/spectradialog.ui:437
 #. i18n: ectx: property (text), widget (QLabel, label_5)
-#, fuzzy
-#| msgid "Line width:"
-msgid "Line Size:"
-msgstr "Line width:"
+msgctxt "Size in pixels of the line drawing the spectra"
+msgid "Line Width:"
+msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:507
+#. i18n: file: qtplugins/spectra/spectradialog.ui:510
 #. i18n: ectx: property (text), widget (QTableWidget, dataTable)
 msgid "x"
 msgstr "x"
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:512
+#. i18n: file: qtplugins/spectra/spectradialog.ui:515
 #. i18n: ectx: property (text), widget (QTableWidget, dataTable)
 msgid "y"
 msgstr "y"
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:526
+#. i18n: file: qtplugins/spectra/spectradialog.ui:529
 #. i18n: ectx: property (text), widget (QPushButton, push_options)
 #, fuzzy
 #| msgid "Operations"
 msgid "&Options…"
 msgstr "Operations"
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:568
+#. i18n: file: qtplugins/spectra/spectradialog.ui:571
 #. i18n: ectx: property (toolTip), widget (Avogadro::VTK::ChartWidget, plot)
 msgid ""
 "Controls:\n"
@@ -8428,6 +8432,11 @@ msgstr ""
 "odell@googlemail.com,,,,,avogadro-devel@lists.sourceforge.net,bburns@aundae."
 "com,cwoollard@gmail.com,,,,joseph.odell@googlemail.com"
 
+#, fuzzy
+#~| msgid "Line width:"
+#~ msgid "Line Size:"
+#~ msgstr "Line width:"
+
 #~ msgid "Optimize"
 #~ msgstr "Optimize"
 
diff --git a/i18n/en_CA.po b/i18n/en_CA.po
index c48218f4d7..2dcf665f67 100644
--- a/i18n/en_CA.po
+++ b/i18n/en_CA.po
@@ -11,7 +11,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: _avogadro-en_GB\n"
 "Report-Msgid-Bugs-To: avogadro-devel@lists.sourceforge.net\n"
-"POT-Creation-Date: 2024-03-07 04:05+0000\n"
+"POT-Creation-Date: 2024-06-30 02:14+0000\n"
 "PO-Revision-Date: 2024-05-03 03:07+0000\n"
 "Last-Translator: \"Carson Geller (Cart)\" <cartrigger@gmail.com>\n"
 "Language-Team: English (Canada) <https://hosted.weblate.org/projects/"
@@ -2935,7 +2935,7 @@ msgid "Render the force field visualizations for the atoms of the molecule."
 msgstr "Render the force field visualizations for the atoms of the molecule."
 
 #: qtplugins/forcefield/forcefield.cpp:88
-#: qtplugins/forcefield/forcefield.cpp:333 qtplugins/openbabel/openbabel.cpp:47
+#: qtplugins/forcefield/forcefield.cpp:339 qtplugins/openbabel/openbabel.cpp:47
 #: qtplugins/openbabel/openbabel.cpp:559
 msgid "Optimize Geometry"
 msgstr "&Optimize Geometry"
@@ -2960,13 +2960,9 @@ msgstr "Unfreeze Selected Atoms"
 msgid "&Calculate"
 msgstr "&Calculate"
 
-#: qtplugins/forcefield/forcefield.cpp:368
-#, qt-format
-msgid "%1 Energy = %L2"
-msgstr "%1 Energy = %L2"
-
-#: qtplugins/forcefield/forcefield.cpp:369
-#: qtplugins/forcefield/forcefield.cpp:415
+#: qtplugins/forcefield/forcefield.cpp:245
+#: qtplugins/forcefield/forcefield.cpp:375
+#: qtplugins/forcefield/forcefield.cpp:421
 #: qtplugins/playertool/playertool.cpp:347
 #: qtplugins/playertool/playertool.cpp:379 qtplugins/surfaces/surfaces.cpp:912
 #: qtplugins/surfaces/surfaces.cpp:956 qtplugins/surfaces/surfaces.cpp:968
@@ -2974,7 +2970,16 @@ msgstr "%1 Energy = %L2"
 msgid "Avogadro"
 msgstr "Avogadro"
 
-#: qtplugins/forcefield/forcefield.cpp:414
+#: qtplugins/forcefield/forcefield.cpp:246
+msgid "No atoms provided for optimization"
+msgstr ""
+
+#: qtplugins/forcefield/forcefield.cpp:374
+#, qt-format
+msgid "%1 Energy = %L2"
+msgstr "%1 Energy = %L2"
+
+#: qtplugins/forcefield/forcefield.cpp:420
 #, qt-format
 msgid "%1 Force Norm = %L2"
 msgstr "%1 Force Norm = %L2"
@@ -7741,31 +7746,30 @@ msgstr ""
 msgid "18"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:434
+#. i18n: file: qtplugins/spectra/spectradialog.ui:437
 #. i18n: ectx: property (text), widget (QLabel, label_5)
-#, fuzzy
-#| msgid "Line width:"
-msgid "Line Size:"
-msgstr "Line width:"
+msgctxt "Size in pixels of the line drawing the spectra"
+msgid "Line Width:"
+msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:507
+#. i18n: file: qtplugins/spectra/spectradialog.ui:510
 #. i18n: ectx: property (text), widget (QTableWidget, dataTable)
 msgid "x"
 msgstr "x"
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:512
+#. i18n: file: qtplugins/spectra/spectradialog.ui:515
 #. i18n: ectx: property (text), widget (QTableWidget, dataTable)
 msgid "y"
 msgstr "y"
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:526
+#. i18n: file: qtplugins/spectra/spectradialog.ui:529
 #. i18n: ectx: property (text), widget (QPushButton, push_options)
 #, fuzzy
 #| msgid "Operations"
 msgid "&Options…"
 msgstr "Operations"
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:568
+#. i18n: file: qtplugins/spectra/spectradialog.ui:571
 #. i18n: ectx: property (toolTip), widget (Avogadro::VTK::ChartWidget, plot)
 msgid ""
 "Controls:\n"
@@ -8424,6 +8428,11 @@ msgstr ""
 "odell@googlemail.com,,,,,avogadro-devel@lists.sourceforge.net,bburns@aundae."
 "com,cwoollard@gmail.com,,,,joseph.odell@googlemail.com"
 
+#, fuzzy
+#~| msgid "Line width:"
+#~ msgid "Line Size:"
+#~ msgstr "Line width:"
+
 #~ msgid "Optimize"
 #~ msgstr "Optimize"
 
diff --git a/i18n/en_GB.po b/i18n/en_GB.po
index a113c637bc..a672e24ce8 100644
--- a/i18n/en_GB.po
+++ b/i18n/en_GB.po
@@ -11,7 +11,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: _avogadro-en_GB\n"
 "Report-Msgid-Bugs-To: avogadro-devel@lists.sourceforge.net\n"
-"POT-Creation-Date: 2024-03-07 04:05+0000\n"
+"POT-Creation-Date: 2024-06-30 02:14+0000\n"
 "PO-Revision-Date: 2024-06-28 22:09+0000\n"
 "Last-Translator: Andi Chandler <andi@gowling.com>\n"
 "Language-Team: English (United Kingdom) <https://hosted.weblate.org/projects/"
@@ -2935,7 +2935,7 @@ msgid "Render the force field visualizations for the atoms of the molecule."
 msgstr "Render the force field visualizations for the atoms of the molecule."
 
 #: qtplugins/forcefield/forcefield.cpp:88
-#: qtplugins/forcefield/forcefield.cpp:333 qtplugins/openbabel/openbabel.cpp:47
+#: qtplugins/forcefield/forcefield.cpp:339 qtplugins/openbabel/openbabel.cpp:47
 #: qtplugins/openbabel/openbabel.cpp:559
 msgid "Optimize Geometry"
 msgstr "&Optimize Geometry"
@@ -2960,13 +2960,9 @@ msgstr "Unfreeze Selected Atoms"
 msgid "&Calculate"
 msgstr "&Calculate"
 
-#: qtplugins/forcefield/forcefield.cpp:368
-#, qt-format
-msgid "%1 Energy = %L2"
-msgstr "%1 Energy = %L2"
-
-#: qtplugins/forcefield/forcefield.cpp:369
-#: qtplugins/forcefield/forcefield.cpp:415
+#: qtplugins/forcefield/forcefield.cpp:245
+#: qtplugins/forcefield/forcefield.cpp:375
+#: qtplugins/forcefield/forcefield.cpp:421
 #: qtplugins/playertool/playertool.cpp:347
 #: qtplugins/playertool/playertool.cpp:379 qtplugins/surfaces/surfaces.cpp:912
 #: qtplugins/surfaces/surfaces.cpp:956 qtplugins/surfaces/surfaces.cpp:968
@@ -2974,7 +2970,16 @@ msgstr "%1 Energy = %L2"
 msgid "Avogadro"
 msgstr "Avogadro"
 
-#: qtplugins/forcefield/forcefield.cpp:414
+#: qtplugins/forcefield/forcefield.cpp:246
+msgid "No atoms provided for optimization"
+msgstr ""
+
+#: qtplugins/forcefield/forcefield.cpp:374
+#, qt-format
+msgid "%1 Energy = %L2"
+msgstr "%1 Energy = %L2"
+
+#: qtplugins/forcefield/forcefield.cpp:420
 #, qt-format
 msgid "%1 Force Norm = %L2"
 msgstr "%1 Force Norm = %L2"
@@ -5028,8 +5033,8 @@ msgstr ""
 "Template Tool\n"
 "\n"
 "Insert fragments, including metal centers.\n"
-"Select an element and coordination geometry,then click to insert a fragment."
-"\n"
+"Select an element and coordination geometry,then click to insert a "
+"fragment.\n"
 "\n"
 "Select a ligand or functional group and clickon a hydrogen atom to attach it."
 
@@ -7659,27 +7664,28 @@ msgstr "16"
 msgid "18"
 msgstr "18"
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:434
+#. i18n: file: qtplugins/spectra/spectradialog.ui:437
 #. i18n: ectx: property (text), widget (QLabel, label_5)
-msgid "Line Size:"
-msgstr "Line Size:"
+msgctxt "Size in pixels of the line drawing the spectra"
+msgid "Line Width:"
+msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:507
+#. i18n: file: qtplugins/spectra/spectradialog.ui:510
 #. i18n: ectx: property (text), widget (QTableWidget, dataTable)
 msgid "x"
 msgstr "x"
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:512
+#. i18n: file: qtplugins/spectra/spectradialog.ui:515
 #. i18n: ectx: property (text), widget (QTableWidget, dataTable)
 msgid "y"
 msgstr "y"
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:526
+#. i18n: file: qtplugins/spectra/spectradialog.ui:529
 #. i18n: ectx: property (text), widget (QPushButton, push_options)
 msgid "&Options…"
 msgstr "&Options…"
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:568
+#. i18n: file: qtplugins/spectra/spectradialog.ui:571
 #. i18n: ectx: property (toolTip), widget (Avogadro::VTK::ChartWidget, plot)
 msgid ""
 "Controls:\n"
@@ -8285,29 +8291,29 @@ msgstr "Display Yaehmop Input?"
 msgctxt "NAME OF TRANSLATORS"
 msgid "Your names"
 msgstr ""
-",Launchpad Contributions:,Andres Montejo Martinez,DiegoJ,Edgardo "
-"Fredz,Enterhase,Feder Sáiz,Federico Vera,Gabriel Ruiz,Geoff "
-"Hutchison,Gothmog,Javier García Díaz,Luis J. Claros,Pablo Catarecha,Rogelio "
-"Castillo A.,cocoloco, ,Launchpad Contributions:,Gabriel Ruiz,Geoff "
-"Hutchison,Jen Ockwell,Marcus D. Hanwell,kuede, ,Launchpad Contributions:"
-",Avogadro Team, ,Launchpad Contributions:,Avogadro Team,Brian Burns,Geoff "
-"Hutchison,Marcus D. Hanwell, ,Launchpad Contributions:,Avogadro Team,Brian "
-"Burns,Geoff Hutchison,Marcus D. Hanwell,ascenseur, ,Launchpad Contributions:"
-",Avogadro Team,Brian Burns,Geoff Hutchison,Marcus D. Hanwell,ascenseur, "
-",Launchpad Contributions:,Avogadro Team,Brian Burns,Geoff Hutchison,Marcus "
-"D. Hanwell,ascenseur, ,Launchpad Contributions:,Avogadro Team,Brian "
-"Burns,Geoff Hutchison,Ken Sharp,Marcus D. Hanwell,ascenseur, ,Launchpad "
+",Launchpad Contributions:,Andres Montejo Martinez,DiegoJ,Edgardo Fredz,"
+"Enterhase,Feder Sáiz,Federico Vera,Gabriel Ruiz,Geoff Hutchison,Gothmog,"
+"Javier García Díaz,Luis J. Claros,Pablo Catarecha,Rogelio Castillo A.,"
+"cocoloco, ,Launchpad Contributions:,Gabriel Ruiz,Geoff Hutchison,Jen Ockwell,"
+"Marcus D. Hanwell,kuede, ,Launchpad Contributions:,Avogadro Team, ,Launchpad "
+"Contributions:,Avogadro Team,Brian Burns,Geoff Hutchison,Marcus D. Hanwell, ,"
+"Launchpad Contributions:,Avogadro Team,Brian Burns,Geoff Hutchison,Marcus D. "
+"Hanwell,ascenseur, ,Launchpad Contributions:,Avogadro Team,Brian Burns,Geoff "
+"Hutchison,Marcus D. Hanwell,ascenseur, ,Launchpad Contributions:,Avogadro "
+"Team,Brian Burns,Geoff Hutchison,Marcus D. Hanwell,ascenseur, ,Launchpad "
 "Contributions:,Avogadro Team,Brian Burns,Geoff Hutchison,Ken Sharp,Marcus D. "
 "Hanwell,ascenseur, ,Launchpad Contributions:,Avogadro Team,Brian Burns,Geoff "
-"Hutchison,Ken Sharp,Marcus D. Hanwell,ascenseur, ,Launchpad Contributions:"
-",Avogadro Team,Brian Burns,Geoff Hutchison,Ken Sharp,Marcus D. "
-"Hanwell,ascenseur, ,Launchpad Contributions:,Andi Chandler,Anthony "
-"Harrington,Avogadro Team,Brian Burns,Chris Woollard,Geoff Hutchison,Ken "
-"Sharp,Marcus D. Hanwell,ascenseur, ,Launchpad Contributions:,Andi "
-"Chandler,Anthony Harrington,Avogadro Team,Brian Burns,Chris Woollard,Geoff "
-"Hutchison,Ken Sharp,Marcus D. Hanwell,ascenseur, ,Launchpad Contributions:"
-",Andi Chandler,Anthony Harrington,Avogadro Team,Brian Burns,Chris "
-"Woollard,Geoff Hutchison,Ken Sharp,Marcus D. Hanwell,ascenseur"
+"Hutchison,Ken Sharp,Marcus D. Hanwell,ascenseur, ,Launchpad Contributions:,"
+"Avogadro Team,Brian Burns,Geoff Hutchison,Ken Sharp,Marcus D. Hanwell,"
+"ascenseur, ,Launchpad Contributions:,Avogadro Team,Brian Burns,Geoff "
+"Hutchison,Ken Sharp,Marcus D. Hanwell,ascenseur, ,Launchpad Contributions:,"
+"Andi Chandler,Anthony Harrington,Avogadro Team,Brian Burns,Chris Woollard,"
+"Geoff Hutchison,Ken Sharp,Marcus D. Hanwell,ascenseur, ,Launchpad "
+"Contributions:,Andi Chandler,Anthony Harrington,Avogadro Team,Brian Burns,"
+"Chris Woollard,Geoff Hutchison,Ken Sharp,Marcus D. Hanwell,ascenseur, ,"
+"Launchpad Contributions:,Andi Chandler,Anthony Harrington,Avogadro Team,"
+"Brian Burns,Chris Woollard,Geoff Hutchison,Ken Sharp,Marcus D. Hanwell,"
+"ascenseur"
 
 msgctxt "EMAIL OF TRANSLATORS"
 msgid "Your emails"
@@ -8332,6 +8338,9 @@ msgstr ""
 "odell@googlemail.com,,,,,avogadro-devel@lists.sourceforge.net,bburns@aundae."
 "com,cwoollard@gmail.com,,,,joseph.odell@googlemail.com"
 
+#~ msgid "Line Size:"
+#~ msgstr "Line Size:"
+
 #~ msgid "Optimize"
 #~ msgstr "Optimize"
 
diff --git a/i18n/eo.po b/i18n/eo.po
index 9ee1ad9c34..38662072b9 100644
--- a/i18n/eo.po
+++ b/i18n/eo.po
@@ -6,7 +6,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: Avogadro 1.93.0\n"
 "Report-Msgid-Bugs-To: avogadro-devel@lists.sourceforge.net\n"
-"POT-Creation-Date: 2024-03-07 04:05+0000\n"
+"POT-Creation-Date: 2024-06-30 02:14+0000\n"
 "PO-Revision-Date: 2021-09-26 12:57+0000\n"
 "Last-Translator: phlostically <phlostically@mailinator.com>\n"
 "Language-Team: Esperanto <https://hosted.weblate.org/projects/avogadro/"
@@ -3030,7 +3030,7 @@ msgid "Render the force field visualizations for the atoms of the molecule."
 msgstr "Montri la fortokampon de la atomoj en la molekulo."
 
 #: qtplugins/forcefield/forcefield.cpp:88
-#: qtplugins/forcefield/forcefield.cpp:333 qtplugins/openbabel/openbabel.cpp:47
+#: qtplugins/forcefield/forcefield.cpp:339 qtplugins/openbabel/openbabel.cpp:47
 #: qtplugins/openbabel/openbabel.cpp:559
 msgid "Optimize Geometry"
 msgstr "Optimumigi Geometrion"
@@ -3063,13 +3063,9 @@ msgstr "Elekti Ĉion"
 msgid "&Calculate"
 msgstr "Kalkuli"
 
-#: qtplugins/forcefield/forcefield.cpp:368
-#, qt-format
-msgid "%1 Energy = %L2"
-msgstr ""
-
-#: qtplugins/forcefield/forcefield.cpp:369
-#: qtplugins/forcefield/forcefield.cpp:415
+#: qtplugins/forcefield/forcefield.cpp:245
+#: qtplugins/forcefield/forcefield.cpp:375
+#: qtplugins/forcefield/forcefield.cpp:421
 #: qtplugins/playertool/playertool.cpp:347
 #: qtplugins/playertool/playertool.cpp:379 qtplugins/surfaces/surfaces.cpp:912
 #: qtplugins/surfaces/surfaces.cpp:956 qtplugins/surfaces/surfaces.cpp:968
@@ -3077,7 +3073,16 @@ msgstr ""
 msgid "Avogadro"
 msgstr "Avogadro"
 
-#: qtplugins/forcefield/forcefield.cpp:414
+#: qtplugins/forcefield/forcefield.cpp:246
+msgid "No atoms provided for optimization"
+msgstr ""
+
+#: qtplugins/forcefield/forcefield.cpp:374
+#, qt-format
+msgid "%1 Energy = %L2"
+msgstr ""
+
+#: qtplugins/forcefield/forcefield.cpp:420
 #, qt-format
 msgid "%1 Force Norm = %L2"
 msgstr ""
@@ -8086,30 +8091,30 @@ msgstr ""
 msgid "18"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:434
+#. i18n: file: qtplugins/spectra/spectradialog.ui:437
 #. i18n: ectx: property (text), widget (QLabel, label_5)
-#, fuzzy
-msgid "Line Size:"
-msgstr "Larĝo de pinto:"
+msgctxt "Size in pixels of the line drawing the spectra"
+msgid "Line Width:"
+msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:507
+#. i18n: file: qtplugins/spectra/spectradialog.ui:510
 #. i18n: ectx: property (text), widget (QTableWidget, dataTable)
 msgid "x"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:512
+#. i18n: file: qtplugins/spectra/spectradialog.ui:515
 #. i18n: ectx: property (text), widget (QTableWidget, dataTable)
 msgid "y"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:526
+#. i18n: file: qtplugins/spectra/spectradialog.ui:529
 #. i18n: ectx: property (text), widget (QPushButton, push_options)
 #, fuzzy
 #| msgid "Operations"
 msgid "&Options…"
 msgstr "Operacioj"
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:568
+#. i18n: file: qtplugins/spectra/spectradialog.ui:571
 #. i18n: ectx: property (toolTip), widget (Avogadro::VTK::ChartWidget, plot)
 msgid ""
 "Controls:\n"
@@ -8760,6 +8765,10 @@ msgctxt "EMAIL OF TRANSLATORS"
 msgid "Your emails"
 msgstr "phlostically@example.com"
 
+#, fuzzy
+#~ msgid "Line Size:"
+#~ msgstr "Larĝo de pinto:"
+
 #, fuzzy
 #~| msgid "Optimize Geometry"
 #~ msgid "Optimize"
diff --git a/i18n/es.po b/i18n/es.po
index 8583f0c561..e1b9d3ad04 100644
--- a/i18n/es.po
+++ b/i18n/es.po
@@ -13,7 +13,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: avogadro\n"
 "Report-Msgid-Bugs-To: avogadro-devel@lists.sourceforge.net\n"
-"POT-Creation-Date: 2024-03-07 04:05+0000\n"
+"POT-Creation-Date: 2024-06-30 02:14+0000\n"
 "PO-Revision-Date: 2024-03-16 16:40+0000\n"
 "Last-Translator: gallegonovato <fran-carro@hotmail.es>\n"
 "Language-Team: Spanish <https://hosted.weblate.org/projects/avogadro/"
@@ -2976,7 +2976,7 @@ msgstr ""
 "molécula."
 
 #: qtplugins/forcefield/forcefield.cpp:88
-#: qtplugins/forcefield/forcefield.cpp:333 qtplugins/openbabel/openbabel.cpp:47
+#: qtplugins/forcefield/forcefield.cpp:339 qtplugins/openbabel/openbabel.cpp:47
 #: qtplugins/openbabel/openbabel.cpp:559
 msgid "Optimize Geometry"
 msgstr "Optimizar Geometría"
@@ -3001,13 +3001,9 @@ msgstr "Liberar los Átomos Seleccionadaos"
 msgid "&Calculate"
 msgstr "&Calcular"
 
-#: qtplugins/forcefield/forcefield.cpp:368
-#, qt-format
-msgid "%1 Energy = %L2"
-msgstr "%1 Energía = %L2"
-
-#: qtplugins/forcefield/forcefield.cpp:369
-#: qtplugins/forcefield/forcefield.cpp:415
+#: qtplugins/forcefield/forcefield.cpp:245
+#: qtplugins/forcefield/forcefield.cpp:375
+#: qtplugins/forcefield/forcefield.cpp:421
 #: qtplugins/playertool/playertool.cpp:347
 #: qtplugins/playertool/playertool.cpp:379 qtplugins/surfaces/surfaces.cpp:912
 #: qtplugins/surfaces/surfaces.cpp:956 qtplugins/surfaces/surfaces.cpp:968
@@ -3015,7 +3011,16 @@ msgstr "%1 Energía = %L2"
 msgid "Avogadro"
 msgstr "Avogadro"
 
-#: qtplugins/forcefield/forcefield.cpp:414
+#: qtplugins/forcefield/forcefield.cpp:246
+msgid "No atoms provided for optimization"
+msgstr ""
+
+#: qtplugins/forcefield/forcefield.cpp:374
+#, qt-format
+msgid "%1 Energy = %L2"
+msgstr "%1 Energía = %L2"
+
+#: qtplugins/forcefield/forcefield.cpp:420
 #, qt-format
 msgid "%1 Force Norm = %L2"
 msgstr "%1 Criterios de la fuerza = %L2"
@@ -7729,27 +7734,28 @@ msgstr "16"
 msgid "18"
 msgstr "18"
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:434
+#. i18n: file: qtplugins/spectra/spectradialog.ui:437
 #. i18n: ectx: property (text), widget (QLabel, label_5)
-msgid "Line Size:"
-msgstr "Tamaño de la línea:"
+msgctxt "Size in pixels of the line drawing the spectra"
+msgid "Line Width:"
+msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:507
+#. i18n: file: qtplugins/spectra/spectradialog.ui:510
 #. i18n: ectx: property (text), widget (QTableWidget, dataTable)
 msgid "x"
 msgstr "x"
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:512
+#. i18n: file: qtplugins/spectra/spectradialog.ui:515
 #. i18n: ectx: property (text), widget (QTableWidget, dataTable)
 msgid "y"
 msgstr "y"
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:526
+#. i18n: file: qtplugins/spectra/spectradialog.ui:529
 #. i18n: ectx: property (text), widget (QPushButton, push_options)
 msgid "&Options…"
 msgstr "&Opciones…"
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:568
+#. i18n: file: qtplugins/spectra/spectradialog.ui:571
 #. i18n: ectx: property (toolTip), widget (Avogadro::VTK::ChartWidget, plot)
 msgid ""
 "Controls:\n"
@@ -8490,6 +8496,9 @@ msgstr ""
 "tres.14159@gmail.com,monkey.libre@gmail.com,nzahlut@live.com,,paco@byasl."
 "com,,victorhera@gmail.com,memaljo@yahoo.com,"
 
+#~ msgid "Line Size:"
+#~ msgstr "Tamaño de la línea:"
+
 #~ msgid "Optimize"
 #~ msgstr "Optimizar"
 
diff --git a/i18n/et.po b/i18n/et.po
index c0db8eee37..ed46945297 100644
--- a/i18n/et.po
+++ b/i18n/et.po
@@ -7,7 +7,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: avogadro\n"
 "Report-Msgid-Bugs-To: avogadro-devel@lists.sourceforge.net\n"
-"POT-Creation-Date: 2024-03-07 04:05+0000\n"
+"POT-Creation-Date: 2024-06-30 02:14+0000\n"
 "PO-Revision-Date: 2016-06-10 06:31+0000\n"
 "Last-Translator: Avogadro Team <avogadro-devel@lists.sourceforge.net>\n"
 "Language-Team: Estonian <et@li.org>\n"
@@ -2866,7 +2866,7 @@ msgid "Render the force field visualizations for the atoms of the molecule."
 msgstr ""
 
 #: qtplugins/forcefield/forcefield.cpp:88
-#: qtplugins/forcefield/forcefield.cpp:333 qtplugins/openbabel/openbabel.cpp:47
+#: qtplugins/forcefield/forcefield.cpp:339 qtplugins/openbabel/openbabel.cpp:47
 #: qtplugins/openbabel/openbabel.cpp:559
 msgid "Optimize Geometry"
 msgstr ""
@@ -2897,14 +2897,9 @@ msgstr "Impordi valitud aatomid"
 msgid "&Calculate"
 msgstr "Arvuta"
 
-#: qtplugins/forcefield/forcefield.cpp:368
-#, fuzzy, qt-format
-#| msgid "Energy = %L1 %2"
-msgid "%1 Energy = %L2"
-msgstr "Energia = %L1 %2"
-
-#: qtplugins/forcefield/forcefield.cpp:369
-#: qtplugins/forcefield/forcefield.cpp:415
+#: qtplugins/forcefield/forcefield.cpp:245
+#: qtplugins/forcefield/forcefield.cpp:375
+#: qtplugins/forcefield/forcefield.cpp:421
 #: qtplugins/playertool/playertool.cpp:347
 #: qtplugins/playertool/playertool.cpp:379 qtplugins/surfaces/surfaces.cpp:912
 #: qtplugins/surfaces/surfaces.cpp:956 qtplugins/surfaces/surfaces.cpp:968
@@ -2912,7 +2907,17 @@ msgstr "Energia = %L1 %2"
 msgid "Avogadro"
 msgstr "Avogadro"
 
-#: qtplugins/forcefield/forcefield.cpp:414
+#: qtplugins/forcefield/forcefield.cpp:246
+msgid "No atoms provided for optimization"
+msgstr ""
+
+#: qtplugins/forcefield/forcefield.cpp:374
+#, fuzzy, qt-format
+#| msgid "Energy = %L1 %2"
+msgid "%1 Energy = %L2"
+msgstr "Energia = %L1 %2"
+
+#: qtplugins/forcefield/forcefield.cpp:420
 #, qt-format
 msgid "%1 Force Norm = %L2"
 msgstr ""
@@ -7574,27 +7579,28 @@ msgstr ""
 msgid "18"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:434
+#. i18n: file: qtplugins/spectra/spectradialog.ui:437
 #. i18n: ectx: property (text), widget (QLabel, label_5)
-msgid "Line Size:"
+msgctxt "Size in pixels of the line drawing the spectra"
+msgid "Line Width:"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:507
+#. i18n: file: qtplugins/spectra/spectradialog.ui:510
 #. i18n: ectx: property (text), widget (QTableWidget, dataTable)
 msgid "x"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:512
+#. i18n: file: qtplugins/spectra/spectradialog.ui:515
 #. i18n: ectx: property (text), widget (QTableWidget, dataTable)
 msgid "y"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:526
+#. i18n: file: qtplugins/spectra/spectradialog.ui:529
 #. i18n: ectx: property (text), widget (QPushButton, push_options)
 msgid "&Options…"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:568
+#. i18n: file: qtplugins/spectra/spectradialog.ui:571
 #. i18n: ectx: property (toolTip), widget (Avogadro::VTK::ChartWidget, plot)
 msgid ""
 "Controls:\n"
diff --git a/i18n/eu.po b/i18n/eu.po
index 581009b268..f33993b968 100644
--- a/i18n/eu.po
+++ b/i18n/eu.po
@@ -7,7 +7,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: avogadro\n"
 "Report-Msgid-Bugs-To: avogadro-devel@lists.sourceforge.net\n"
-"POT-Creation-Date: 2024-03-07 04:05+0000\n"
+"POT-Creation-Date: 2024-06-30 02:14+0000\n"
 "PO-Revision-Date: 2022-06-22 19:15+0000\n"
 "Last-Translator: Julen Larrucea <code@larrucea.eu>\n"
 "Language-Team: Basque <https://hosted.weblate.org/projects/avogadro/"
@@ -3006,7 +3006,7 @@ msgid "Render the force field visualizations for the atoms of the molecule."
 msgstr ""
 
 #: qtplugins/forcefield/forcefield.cpp:88
-#: qtplugins/forcefield/forcefield.cpp:333 qtplugins/openbabel/openbabel.cpp:47
+#: qtplugins/forcefield/forcefield.cpp:339 qtplugins/openbabel/openbabel.cpp:47
 #: qtplugins/openbabel/openbabel.cpp:559
 #, fuzzy
 msgid "Optimize Geometry"
@@ -3040,14 +3040,9 @@ msgstr "Atomo Hautatuak Konpondu"
 msgid "&Calculate"
 msgstr "Kalkulatu"
 
-#: qtplugins/forcefield/forcefield.cpp:368
-#, fuzzy, qt-format
-#| msgid "Energy = %L1 %2"
-msgid "%1 Energy = %L2"
-msgstr "Energia = %L1 %2"
-
-#: qtplugins/forcefield/forcefield.cpp:369
-#: qtplugins/forcefield/forcefield.cpp:415
+#: qtplugins/forcefield/forcefield.cpp:245
+#: qtplugins/forcefield/forcefield.cpp:375
+#: qtplugins/forcefield/forcefield.cpp:421
 #: qtplugins/playertool/playertool.cpp:347
 #: qtplugins/playertool/playertool.cpp:379 qtplugins/surfaces/surfaces.cpp:912
 #: qtplugins/surfaces/surfaces.cpp:956 qtplugins/surfaces/surfaces.cpp:968
@@ -3055,7 +3050,17 @@ msgstr "Energia = %L1 %2"
 msgid "Avogadro"
 msgstr "Avogadro"
 
-#: qtplugins/forcefield/forcefield.cpp:414
+#: qtplugins/forcefield/forcefield.cpp:246
+msgid "No atoms provided for optimization"
+msgstr ""
+
+#: qtplugins/forcefield/forcefield.cpp:374
+#, fuzzy, qt-format
+#| msgid "Energy = %L1 %2"
+msgid "%1 Energy = %L2"
+msgstr "Energia = %L1 %2"
+
+#: qtplugins/forcefield/forcefield.cpp:420
 #, qt-format
 msgid "%1 Force Norm = %L2"
 msgstr ""
@@ -7956,29 +7961,28 @@ msgstr ""
 msgid "18"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:434
+#. i18n: file: qtplugins/spectra/spectradialog.ui:437
 #. i18n: ectx: property (text), widget (QLabel, label_5)
-#, fuzzy
-#| msgid "Jump Size:"
-msgid "Line Size:"
-msgstr "Saltoaren Tamaina"
+msgctxt "Size in pixels of the line drawing the spectra"
+msgid "Line Width:"
+msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:507
+#. i18n: file: qtplugins/spectra/spectradialog.ui:510
 #. i18n: ectx: property (text), widget (QTableWidget, dataTable)
 msgid "x"
 msgstr "x"
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:512
+#. i18n: file: qtplugins/spectra/spectradialog.ui:515
 #. i18n: ectx: property (text), widget (QTableWidget, dataTable)
 msgid "y"
 msgstr "y"
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:526
+#. i18n: file: qtplugins/spectra/spectradialog.ui:529
 #. i18n: ectx: property (text), widget (QPushButton, push_options)
 msgid "&Options…"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:568
+#. i18n: file: qtplugins/spectra/spectradialog.ui:571
 #. i18n: ectx: property (toolTip), widget (Avogadro::VTK::ChartWidget, plot)
 msgid ""
 "Controls:\n"
@@ -8613,6 +8617,11 @@ msgstr ""
 "devel@lists.sourceforge.net,,,,avogadro-devel@lists.sourceforge.net,,,,"
 "avogadro-devel@lists.sourceforge.net,julenl@gmail.com"
 
+#, fuzzy
+#~| msgid "Jump Size:"
+#~ msgid "Line Size:"
+#~ msgstr "Saltoaren Tamaina"
+
 #, fuzzy
 #~| msgid "Optimization"
 #~ msgid "Optimize"
diff --git a/i18n/fa.po b/i18n/fa.po
index e8683364a6..842fa05b67 100644
--- a/i18n/fa.po
+++ b/i18n/fa.po
@@ -7,7 +7,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: Avogadro 1.93.0\n"
 "Report-Msgid-Bugs-To: avogadro-devel@lists.sourceforge.net\n"
-"POT-Creation-Date: 2024-03-07 04:05+0000\n"
+"POT-Creation-Date: 2024-06-30 02:14+0000\n"
 "PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
 "Last-Translator: Automatically generated\n"
 "Language-Team: none\n"
@@ -2827,7 +2827,7 @@ msgid "Render the force field visualizations for the atoms of the molecule."
 msgstr ""
 
 #: qtplugins/forcefield/forcefield.cpp:88
-#: qtplugins/forcefield/forcefield.cpp:333 qtplugins/openbabel/openbabel.cpp:47
+#: qtplugins/forcefield/forcefield.cpp:339 qtplugins/openbabel/openbabel.cpp:47
 #: qtplugins/openbabel/openbabel.cpp:559
 msgid "Optimize Geometry"
 msgstr ""
@@ -2852,13 +2852,9 @@ msgstr ""
 msgid "&Calculate"
 msgstr ""
 
-#: qtplugins/forcefield/forcefield.cpp:368
-#, qt-format
-msgid "%1 Energy = %L2"
-msgstr ""
-
-#: qtplugins/forcefield/forcefield.cpp:369
-#: qtplugins/forcefield/forcefield.cpp:415
+#: qtplugins/forcefield/forcefield.cpp:245
+#: qtplugins/forcefield/forcefield.cpp:375
+#: qtplugins/forcefield/forcefield.cpp:421
 #: qtplugins/playertool/playertool.cpp:347
 #: qtplugins/playertool/playertool.cpp:379 qtplugins/surfaces/surfaces.cpp:912
 #: qtplugins/surfaces/surfaces.cpp:956 qtplugins/surfaces/surfaces.cpp:968
@@ -2866,7 +2862,16 @@ msgstr ""
 msgid "Avogadro"
 msgstr ""
 
-#: qtplugins/forcefield/forcefield.cpp:414
+#: qtplugins/forcefield/forcefield.cpp:246
+msgid "No atoms provided for optimization"
+msgstr ""
+
+#: qtplugins/forcefield/forcefield.cpp:374
+#, qt-format
+msgid "%1 Energy = %L2"
+msgstr ""
+
+#: qtplugins/forcefield/forcefield.cpp:420
 #, qt-format
 msgid "%1 Force Norm = %L2"
 msgstr ""
@@ -7407,27 +7412,28 @@ msgstr ""
 msgid "18"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:434
+#. i18n: file: qtplugins/spectra/spectradialog.ui:437
 #. i18n: ectx: property (text), widget (QLabel, label_5)
-msgid "Line Size:"
+msgctxt "Size in pixels of the line drawing the spectra"
+msgid "Line Width:"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:507
+#. i18n: file: qtplugins/spectra/spectradialog.ui:510
 #. i18n: ectx: property (text), widget (QTableWidget, dataTable)
 msgid "x"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:512
+#. i18n: file: qtplugins/spectra/spectradialog.ui:515
 #. i18n: ectx: property (text), widget (QTableWidget, dataTable)
 msgid "y"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:526
+#. i18n: file: qtplugins/spectra/spectradialog.ui:529
 #. i18n: ectx: property (text), widget (QPushButton, push_options)
 msgid "&Options…"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:568
+#. i18n: file: qtplugins/spectra/spectradialog.ui:571
 #. i18n: ectx: property (toolTip), widget (Avogadro::VTK::ChartWidget, plot)
 msgid ""
 "Controls:\n"
diff --git a/i18n/fi.po b/i18n/fi.po
index a25deeb48b..d558101a42 100644
--- a/i18n/fi.po
+++ b/i18n/fi.po
@@ -7,7 +7,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: avogadro\n"
 "Report-Msgid-Bugs-To: avogadro-devel@lists.sourceforge.net\n"
-"POT-Creation-Date: 2024-03-07 04:05+0000\n"
+"POT-Creation-Date: 2024-06-30 02:14+0000\n"
 "PO-Revision-Date: 2016-06-10 06:32+0000\n"
 "Last-Translator: Avogadro Team <avogadro-devel@lists.sourceforge.net>\n"
 "Language-Team: Finnish <fi@li.org>\n"
@@ -2897,7 +2897,7 @@ msgid "Render the force field visualizations for the atoms of the molecule."
 msgstr ""
 
 #: qtplugins/forcefield/forcefield.cpp:88
-#: qtplugins/forcefield/forcefield.cpp:333 qtplugins/openbabel/openbabel.cpp:47
+#: qtplugins/forcefield/forcefield.cpp:339 qtplugins/openbabel/openbabel.cpp:47
 #: qtplugins/openbabel/openbabel.cpp:559
 msgid "Optimize Geometry"
 msgstr ""
@@ -2929,13 +2929,9 @@ msgstr "Kiinnitä valitut atomit paikoilleen"
 msgid "&Calculate"
 msgstr "Laske energia"
 
-#: qtplugins/forcefield/forcefield.cpp:368
-#, qt-format
-msgid "%1 Energy = %L2"
-msgstr ""
-
-#: qtplugins/forcefield/forcefield.cpp:369
-#: qtplugins/forcefield/forcefield.cpp:415
+#: qtplugins/forcefield/forcefield.cpp:245
+#: qtplugins/forcefield/forcefield.cpp:375
+#: qtplugins/forcefield/forcefield.cpp:421
 #: qtplugins/playertool/playertool.cpp:347
 #: qtplugins/playertool/playertool.cpp:379 qtplugins/surfaces/surfaces.cpp:912
 #: qtplugins/surfaces/surfaces.cpp:956 qtplugins/surfaces/surfaces.cpp:968
@@ -2943,7 +2939,16 @@ msgstr ""
 msgid "Avogadro"
 msgstr "Avogadro"
 
-#: qtplugins/forcefield/forcefield.cpp:414
+#: qtplugins/forcefield/forcefield.cpp:246
+msgid "No atoms provided for optimization"
+msgstr ""
+
+#: qtplugins/forcefield/forcefield.cpp:374
+#, qt-format
+msgid "%1 Energy = %L2"
+msgstr ""
+
+#: qtplugins/forcefield/forcefield.cpp:420
 #, qt-format
 msgid "%1 Force Norm = %L2"
 msgstr ""
@@ -7658,27 +7663,28 @@ msgstr ""
 msgid "18"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:434
+#. i18n: file: qtplugins/spectra/spectradialog.ui:437
 #. i18n: ectx: property (text), widget (QLabel, label_5)
-msgid "Line Size:"
+msgctxt "Size in pixels of the line drawing the spectra"
+msgid "Line Width:"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:507
+#. i18n: file: qtplugins/spectra/spectradialog.ui:510
 #. i18n: ectx: property (text), widget (QTableWidget, dataTable)
 msgid "x"
 msgstr "x"
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:512
+#. i18n: file: qtplugins/spectra/spectradialog.ui:515
 #. i18n: ectx: property (text), widget (QTableWidget, dataTable)
 msgid "y"
 msgstr "y"
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:526
+#. i18n: file: qtplugins/spectra/spectradialog.ui:529
 #. i18n: ectx: property (text), widget (QPushButton, push_options)
 msgid "&Options…"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:568
+#. i18n: file: qtplugins/spectra/spectradialog.ui:571
 #. i18n: ectx: property (toolTip), widget (Avogadro::VTK::ChartWidget, plot)
 msgid ""
 "Controls:\n"
diff --git a/i18n/fr.po b/i18n/fr.po
index 607d5b8a26..fec65377a7 100644
--- a/i18n/fr.po
+++ b/i18n/fr.po
@@ -11,7 +11,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: PACKAGE VERSION\n"
 "Report-Msgid-Bugs-To: avogadro-devel@lists.sourceforge.net\n"
-"POT-Creation-Date: 2024-03-07 04:05+0000\n"
+"POT-Creation-Date: 2024-06-30 02:14+0000\n"
 "PO-Revision-Date: 2024-07-01 06:27+0000\n"
 "Last-Translator: Norwid Behrnd <nbehrnd@yahoo.com>\n"
 "Language-Team: French <https://hosted.weblate.org/projects/avogadro/"
@@ -2977,7 +2977,7 @@ msgid "Render the force field visualizations for the atoms of the molecule."
 msgstr "Faire un rendu du champs de force pour les atomes de la molécule."
 
 #: qtplugins/forcefield/forcefield.cpp:88
-#: qtplugins/forcefield/forcefield.cpp:333 qtplugins/openbabel/openbabel.cpp:47
+#: qtplugins/forcefield/forcefield.cpp:339 qtplugins/openbabel/openbabel.cpp:47
 #: qtplugins/openbabel/openbabel.cpp:559
 msgid "Optimize Geometry"
 msgstr "Optimisation de la géométrie"
@@ -3002,13 +3002,9 @@ msgstr "Décongeler les atomes sélectionnés"
 msgid "&Calculate"
 msgstr "&Calculer"
 
-#: qtplugins/forcefield/forcefield.cpp:368
-#, qt-format
-msgid "%1 Energy = %L2"
-msgstr "%1 Énergie = %L2"
-
-#: qtplugins/forcefield/forcefield.cpp:369
-#: qtplugins/forcefield/forcefield.cpp:415
+#: qtplugins/forcefield/forcefield.cpp:245
+#: qtplugins/forcefield/forcefield.cpp:375
+#: qtplugins/forcefield/forcefield.cpp:421
 #: qtplugins/playertool/playertool.cpp:347
 #: qtplugins/playertool/playertool.cpp:379 qtplugins/surfaces/surfaces.cpp:912
 #: qtplugins/surfaces/surfaces.cpp:956 qtplugins/surfaces/surfaces.cpp:968
@@ -3016,7 +3012,16 @@ msgstr "%1 Énergie = %L2"
 msgid "Avogadro"
 msgstr "Avogadro"
 
-#: qtplugins/forcefield/forcefield.cpp:414
+#: qtplugins/forcefield/forcefield.cpp:246
+msgid "No atoms provided for optimization"
+msgstr ""
+
+#: qtplugins/forcefield/forcefield.cpp:374
+#, qt-format
+msgid "%1 Energy = %L2"
+msgstr "%1 Énergie = %L2"
+
+#: qtplugins/forcefield/forcefield.cpp:420
 #, qt-format
 msgid "%1 Force Norm = %L2"
 msgstr "%1 Norme de force = %L2"
@@ -7742,27 +7747,28 @@ msgstr "16"
 msgid "18"
 msgstr "18"
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:434
+#. i18n: file: qtplugins/spectra/spectradialog.ui:437
 #. i18n: ectx: property (text), widget (QLabel, label_5)
-msgid "Line Size:"
-msgstr "largeur de ligne :"
+msgctxt "Size in pixels of the line drawing the spectra"
+msgid "Line Width:"
+msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:507
+#. i18n: file: qtplugins/spectra/spectradialog.ui:510
 #. i18n: ectx: property (text), widget (QTableWidget, dataTable)
 msgid "x"
 msgstr "x"
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:512
+#. i18n: file: qtplugins/spectra/spectradialog.ui:515
 #. i18n: ectx: property (text), widget (QTableWidget, dataTable)
 msgid "y"
 msgstr "y"
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:526
+#. i18n: file: qtplugins/spectra/spectradialog.ui:529
 #. i18n: ectx: property (text), widget (QPushButton, push_options)
 msgid "&Options…"
 msgstr "&Options…"
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:568
+#. i18n: file: qtplugins/spectra/spectradialog.ui:571
 #. i18n: ectx: property (toolTip), widget (Avogadro::VTK::ChartWidget, plot)
 msgid ""
 "Controls:\n"
@@ -8382,6 +8388,9 @@ msgstr ""
 "com, jacob.benoit.1@gmail.com, nizarus@nizarus.org, nizarus@nizarus.tn, "
 "pierre.slamich@gmail.com, etc"
 
+#~ msgid "Line Size:"
+#~ msgstr "largeur de ligne :"
+
 #~ msgid "Optimize"
 #~ msgstr "Optimiser"
 
diff --git a/i18n/fr_CA.po b/i18n/fr_CA.po
index f9abadd17a..1d14691133 100644
--- a/i18n/fr_CA.po
+++ b/i18n/fr_CA.po
@@ -7,7 +7,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: Avogadro 1.90.0\n"
 "Report-Msgid-Bugs-To: avogadro-devel@lists.sourceforge.net\n"
-"POT-Creation-Date: 2024-03-07 04:05+0000\n"
+"POT-Creation-Date: 2024-06-30 02:14+0000\n"
 "PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
 "Last-Translator: Automatically generated\n"
 "Language-Team: none\n"
@@ -2827,7 +2827,7 @@ msgid "Render the force field visualizations for the atoms of the molecule."
 msgstr ""
 
 #: qtplugins/forcefield/forcefield.cpp:88
-#: qtplugins/forcefield/forcefield.cpp:333 qtplugins/openbabel/openbabel.cpp:47
+#: qtplugins/forcefield/forcefield.cpp:339 qtplugins/openbabel/openbabel.cpp:47
 #: qtplugins/openbabel/openbabel.cpp:559
 msgid "Optimize Geometry"
 msgstr ""
@@ -2852,13 +2852,9 @@ msgstr ""
 msgid "&Calculate"
 msgstr ""
 
-#: qtplugins/forcefield/forcefield.cpp:368
-#, qt-format
-msgid "%1 Energy = %L2"
-msgstr ""
-
-#: qtplugins/forcefield/forcefield.cpp:369
-#: qtplugins/forcefield/forcefield.cpp:415
+#: qtplugins/forcefield/forcefield.cpp:245
+#: qtplugins/forcefield/forcefield.cpp:375
+#: qtplugins/forcefield/forcefield.cpp:421
 #: qtplugins/playertool/playertool.cpp:347
 #: qtplugins/playertool/playertool.cpp:379 qtplugins/surfaces/surfaces.cpp:912
 #: qtplugins/surfaces/surfaces.cpp:956 qtplugins/surfaces/surfaces.cpp:968
@@ -2866,7 +2862,16 @@ msgstr ""
 msgid "Avogadro"
 msgstr ""
 
-#: qtplugins/forcefield/forcefield.cpp:414
+#: qtplugins/forcefield/forcefield.cpp:246
+msgid "No atoms provided for optimization"
+msgstr ""
+
+#: qtplugins/forcefield/forcefield.cpp:374
+#, qt-format
+msgid "%1 Energy = %L2"
+msgstr ""
+
+#: qtplugins/forcefield/forcefield.cpp:420
 #, qt-format
 msgid "%1 Force Norm = %L2"
 msgstr ""
@@ -7407,27 +7412,28 @@ msgstr ""
 msgid "18"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:434
+#. i18n: file: qtplugins/spectra/spectradialog.ui:437
 #. i18n: ectx: property (text), widget (QLabel, label_5)
-msgid "Line Size:"
+msgctxt "Size in pixels of the line drawing the spectra"
+msgid "Line Width:"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:507
+#. i18n: file: qtplugins/spectra/spectradialog.ui:510
 #. i18n: ectx: property (text), widget (QTableWidget, dataTable)
 msgid "x"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:512
+#. i18n: file: qtplugins/spectra/spectradialog.ui:515
 #. i18n: ectx: property (text), widget (QTableWidget, dataTable)
 msgid "y"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:526
+#. i18n: file: qtplugins/spectra/spectradialog.ui:529
 #. i18n: ectx: property (text), widget (QPushButton, push_options)
 msgid "&Options…"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:568
+#. i18n: file: qtplugins/spectra/spectradialog.ui:571
 #. i18n: ectx: property (toolTip), widget (Avogadro::VTK::ChartWidget, plot)
 msgid ""
 "Controls:\n"
diff --git a/i18n/gl.po b/i18n/gl.po
index ef2c7c7b5f..5af74f2afd 100644
--- a/i18n/gl.po
+++ b/i18n/gl.po
@@ -7,7 +7,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: Avogadro 1.1.0\n"
 "Report-Msgid-Bugs-To: avogadro-devel@lists.sourceforge.net\n"
-"POT-Creation-Date: 2024-03-07 04:05+0000\n"
+"POT-Creation-Date: 2024-06-30 02:14+0000\n"
 "PO-Revision-Date: 2016-06-10 06:32+0000\n"
 "Last-Translator: Miguel Anxo Bouzada <mbouzada@gmail.com>\n"
 "Language-Team: Galician <proxecto@trasno.net>\n"
@@ -2969,7 +2969,7 @@ msgid "Render the force field visualizations for the atoms of the molecule."
 msgstr ""
 
 #: qtplugins/forcefield/forcefield.cpp:88
-#: qtplugins/forcefield/forcefield.cpp:333 qtplugins/openbabel/openbabel.cpp:47
+#: qtplugins/forcefield/forcefield.cpp:339 qtplugins/openbabel/openbabel.cpp:47
 #: qtplugins/openbabel/openbabel.cpp:559
 #, fuzzy
 msgid "Optimize Geometry"
@@ -3002,14 +3002,9 @@ msgstr "Fixar os átomos escollidos"
 msgid "&Calculate"
 msgstr "Calcular"
 
-#: qtplugins/forcefield/forcefield.cpp:368
-#, fuzzy, qt-format
-#| msgid "Energy = %L1 %2"
-msgid "%1 Energy = %L2"
-msgstr "Enerxía = %L1 %2"
-
-#: qtplugins/forcefield/forcefield.cpp:369
-#: qtplugins/forcefield/forcefield.cpp:415
+#: qtplugins/forcefield/forcefield.cpp:245
+#: qtplugins/forcefield/forcefield.cpp:375
+#: qtplugins/forcefield/forcefield.cpp:421
 #: qtplugins/playertool/playertool.cpp:347
 #: qtplugins/playertool/playertool.cpp:379 qtplugins/surfaces/surfaces.cpp:912
 #: qtplugins/surfaces/surfaces.cpp:956 qtplugins/surfaces/surfaces.cpp:968
@@ -3017,7 +3012,17 @@ msgstr "Enerxía = %L1 %2"
 msgid "Avogadro"
 msgstr "Avogadro"
 
-#: qtplugins/forcefield/forcefield.cpp:414
+#: qtplugins/forcefield/forcefield.cpp:246
+msgid "No atoms provided for optimization"
+msgstr ""
+
+#: qtplugins/forcefield/forcefield.cpp:374
+#, fuzzy, qt-format
+#| msgid "Energy = %L1 %2"
+msgid "%1 Energy = %L2"
+msgstr "Enerxía = %L1 %2"
+
+#: qtplugins/forcefield/forcefield.cpp:420
 #, qt-format
 msgid "%1 Force Norm = %L2"
 msgstr ""
@@ -7875,29 +7880,28 @@ msgstr ""
 msgid "18"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:434
+#. i18n: file: qtplugins/spectra/spectradialog.ui:437
 #. i18n: ectx: property (text), widget (QLabel, label_5)
-#, fuzzy
-#| msgid "Jump Size:"
-msgid "Line Size:"
-msgstr "Tamaño do salto:"
+msgctxt "Size in pixels of the line drawing the spectra"
+msgid "Line Width:"
+msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:507
+#. i18n: file: qtplugins/spectra/spectradialog.ui:510
 #. i18n: ectx: property (text), widget (QTableWidget, dataTable)
 msgid "x"
 msgstr "x"
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:512
+#. i18n: file: qtplugins/spectra/spectradialog.ui:515
 #. i18n: ectx: property (text), widget (QTableWidget, dataTable)
 msgid "y"
 msgstr "y"
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:526
+#. i18n: file: qtplugins/spectra/spectradialog.ui:529
 #. i18n: ectx: property (text), widget (QPushButton, push_options)
 msgid "&Options…"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:568
+#. i18n: file: qtplugins/spectra/spectradialog.ui:571
 #. i18n: ectx: property (toolTip), widget (Avogadro::VTK::ChartWidget, plot)
 msgid ""
 "Controls:\n"
@@ -8507,6 +8511,11 @@ msgstr ""
 ",,mbouzada@gmail.com,,,,mbouzada@gmail.com,,,,mbouzada@gmail.com,,,,"
 "mbouzada@gmail.com,,,,mbouzada@gmail.com,"
 
+#, fuzzy
+#~| msgid "Jump Size:"
+#~ msgid "Line Size:"
+#~ msgstr "Tamaño do salto:"
+
 #, fuzzy
 #~| msgid "Optimization"
 #~ msgid "Optimize"
diff --git a/i18n/he.po b/i18n/he.po
index adf924e866..0170a06ad3 100644
--- a/i18n/he.po
+++ b/i18n/he.po
@@ -7,7 +7,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: avogadro\n"
 "Report-Msgid-Bugs-To: avogadro-devel@lists.sourceforge.net\n"
-"POT-Creation-Date: 2024-03-07 04:05+0000\n"
+"POT-Creation-Date: 2024-06-30 02:14+0000\n"
 "PO-Revision-Date: 2016-06-10 06:32+0000\n"
 "Last-Translator: Avogadro Team <avogadro-devel@lists.sourceforge.net>\n"
 "Language-Team: Hebrew <he@li.org>\n"
@@ -2852,7 +2852,7 @@ msgid "Render the force field visualizations for the atoms of the molecule."
 msgstr ""
 
 #: qtplugins/forcefield/forcefield.cpp:88
-#: qtplugins/forcefield/forcefield.cpp:333 qtplugins/openbabel/openbabel.cpp:47
+#: qtplugins/forcefield/forcefield.cpp:339 qtplugins/openbabel/openbabel.cpp:47
 #: qtplugins/openbabel/openbabel.cpp:559
 msgid "Optimize Geometry"
 msgstr ""
@@ -2881,13 +2881,9 @@ msgstr "בחר צבע לתוויות אטומים"
 msgid "&Calculate"
 msgstr ""
 
-#: qtplugins/forcefield/forcefield.cpp:368
-#, qt-format
-msgid "%1 Energy = %L2"
-msgstr ""
-
-#: qtplugins/forcefield/forcefield.cpp:369
-#: qtplugins/forcefield/forcefield.cpp:415
+#: qtplugins/forcefield/forcefield.cpp:245
+#: qtplugins/forcefield/forcefield.cpp:375
+#: qtplugins/forcefield/forcefield.cpp:421
 #: qtplugins/playertool/playertool.cpp:347
 #: qtplugins/playertool/playertool.cpp:379 qtplugins/surfaces/surfaces.cpp:912
 #: qtplugins/surfaces/surfaces.cpp:956 qtplugins/surfaces/surfaces.cpp:968
@@ -2895,7 +2891,16 @@ msgstr ""
 msgid "Avogadro"
 msgstr "אבוגדרו"
 
-#: qtplugins/forcefield/forcefield.cpp:414
+#: qtplugins/forcefield/forcefield.cpp:246
+msgid "No atoms provided for optimization"
+msgstr ""
+
+#: qtplugins/forcefield/forcefield.cpp:374
+#, qt-format
+msgid "%1 Energy = %L2"
+msgstr ""
+
+#: qtplugins/forcefield/forcefield.cpp:420
 #, qt-format
 msgid "%1 Force Norm = %L2"
 msgstr ""
@@ -7475,27 +7480,28 @@ msgstr ""
 msgid "18"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:434
+#. i18n: file: qtplugins/spectra/spectradialog.ui:437
 #. i18n: ectx: property (text), widget (QLabel, label_5)
-msgid "Line Size:"
+msgctxt "Size in pixels of the line drawing the spectra"
+msgid "Line Width:"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:507
+#. i18n: file: qtplugins/spectra/spectradialog.ui:510
 #. i18n: ectx: property (text), widget (QTableWidget, dataTable)
 msgid "x"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:512
+#. i18n: file: qtplugins/spectra/spectradialog.ui:515
 #. i18n: ectx: property (text), widget (QTableWidget, dataTable)
 msgid "y"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:526
+#. i18n: file: qtplugins/spectra/spectradialog.ui:529
 #. i18n: ectx: property (text), widget (QPushButton, push_options)
 msgid "&Options…"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:568
+#. i18n: file: qtplugins/spectra/spectradialog.ui:571
 #. i18n: ectx: property (toolTip), widget (Avogadro::VTK::ChartWidget, plot)
 msgid ""
 "Controls:\n"
diff --git a/i18n/hi.po b/i18n/hi.po
index 18fee5f7da..ab435f2eff 100644
--- a/i18n/hi.po
+++ b/i18n/hi.po
@@ -7,7 +7,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: avogadro\n"
 "Report-Msgid-Bugs-To: avogadro-devel@lists.sourceforge.net\n"
-"POT-Creation-Date: 2024-03-07 04:05+0000\n"
+"POT-Creation-Date: 2024-06-30 02:14+0000\n"
 "PO-Revision-Date: 2023-10-31 11:02+0000\n"
 "Last-Translator: Atharva Kanherkar <techwave99@gmail.com>\n"
 "Language-Team: Hindi <https://hosted.weblate.org/projects/avogadro/"
@@ -2838,7 +2838,7 @@ msgid "Render the force field visualizations for the atoms of the molecule."
 msgstr ""
 
 #: qtplugins/forcefield/forcefield.cpp:88
-#: qtplugins/forcefield/forcefield.cpp:333 qtplugins/openbabel/openbabel.cpp:47
+#: qtplugins/forcefield/forcefield.cpp:339 qtplugins/openbabel/openbabel.cpp:47
 #: qtplugins/openbabel/openbabel.cpp:559
 msgid "Optimize Geometry"
 msgstr ""
@@ -2863,13 +2863,9 @@ msgstr ""
 msgid "&Calculate"
 msgstr ""
 
-#: qtplugins/forcefield/forcefield.cpp:368
-#, qt-format
-msgid "%1 Energy = %L2"
-msgstr ""
-
-#: qtplugins/forcefield/forcefield.cpp:369
-#: qtplugins/forcefield/forcefield.cpp:415
+#: qtplugins/forcefield/forcefield.cpp:245
+#: qtplugins/forcefield/forcefield.cpp:375
+#: qtplugins/forcefield/forcefield.cpp:421
 #: qtplugins/playertool/playertool.cpp:347
 #: qtplugins/playertool/playertool.cpp:379 qtplugins/surfaces/surfaces.cpp:912
 #: qtplugins/surfaces/surfaces.cpp:956 qtplugins/surfaces/surfaces.cpp:968
@@ -2877,7 +2873,16 @@ msgstr ""
 msgid "Avogadro"
 msgstr ""
 
-#: qtplugins/forcefield/forcefield.cpp:414
+#: qtplugins/forcefield/forcefield.cpp:246
+msgid "No atoms provided for optimization"
+msgstr ""
+
+#: qtplugins/forcefield/forcefield.cpp:374
+#, qt-format
+msgid "%1 Energy = %L2"
+msgstr ""
+
+#: qtplugins/forcefield/forcefield.cpp:420
 #, qt-format
 msgid "%1 Force Norm = %L2"
 msgstr ""
@@ -7434,27 +7439,28 @@ msgstr ""
 msgid "18"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:434
+#. i18n: file: qtplugins/spectra/spectradialog.ui:437
 #. i18n: ectx: property (text), widget (QLabel, label_5)
-msgid "Line Size:"
+msgctxt "Size in pixels of the line drawing the spectra"
+msgid "Line Width:"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:507
+#. i18n: file: qtplugins/spectra/spectradialog.ui:510
 #. i18n: ectx: property (text), widget (QTableWidget, dataTable)
 msgid "x"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:512
+#. i18n: file: qtplugins/spectra/spectradialog.ui:515
 #. i18n: ectx: property (text), widget (QTableWidget, dataTable)
 msgid "y"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:526
+#. i18n: file: qtplugins/spectra/spectradialog.ui:529
 #. i18n: ectx: property (text), widget (QPushButton, push_options)
 msgid "&Options…"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:568
+#. i18n: file: qtplugins/spectra/spectradialog.ui:571
 #. i18n: ectx: property (toolTip), widget (Avogadro::VTK::ChartWidget, plot)
 msgid ""
 "Controls:\n"
diff --git a/i18n/hr.po b/i18n/hr.po
index 8ee9482692..d29e8532e9 100644
--- a/i18n/hr.po
+++ b/i18n/hr.po
@@ -7,7 +7,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: Avogadro 1.90.0\n"
 "Report-Msgid-Bugs-To: avogadro-devel@lists.sourceforge.net\n"
-"POT-Creation-Date: 2024-03-07 04:05+0000\n"
+"POT-Creation-Date: 2024-06-30 02:14+0000\n"
 "PO-Revision-Date: 2024-06-23 17:10+0000\n"
 "Last-Translator: Milo Ivir <mail@milotype.de>\n"
 "Language-Team: Croatian <https://hosted.weblate.org/projects/avogadro/"
@@ -2839,7 +2839,7 @@ msgid "Render the force field visualizations for the atoms of the molecule."
 msgstr ""
 
 #: qtplugins/forcefield/forcefield.cpp:88
-#: qtplugins/forcefield/forcefield.cpp:333 qtplugins/openbabel/openbabel.cpp:47
+#: qtplugins/forcefield/forcefield.cpp:339 qtplugins/openbabel/openbabel.cpp:47
 #: qtplugins/openbabel/openbabel.cpp:559
 msgid "Optimize Geometry"
 msgstr ""
@@ -2864,13 +2864,9 @@ msgstr ""
 msgid "&Calculate"
 msgstr ""
 
-#: qtplugins/forcefield/forcefield.cpp:368
-#, qt-format
-msgid "%1 Energy = %L2"
-msgstr ""
-
-#: qtplugins/forcefield/forcefield.cpp:369
-#: qtplugins/forcefield/forcefield.cpp:415
+#: qtplugins/forcefield/forcefield.cpp:245
+#: qtplugins/forcefield/forcefield.cpp:375
+#: qtplugins/forcefield/forcefield.cpp:421
 #: qtplugins/playertool/playertool.cpp:347
 #: qtplugins/playertool/playertool.cpp:379 qtplugins/surfaces/surfaces.cpp:912
 #: qtplugins/surfaces/surfaces.cpp:956 qtplugins/surfaces/surfaces.cpp:968
@@ -2878,7 +2874,16 @@ msgstr ""
 msgid "Avogadro"
 msgstr "Avogadro"
 
-#: qtplugins/forcefield/forcefield.cpp:414
+#: qtplugins/forcefield/forcefield.cpp:246
+msgid "No atoms provided for optimization"
+msgstr ""
+
+#: qtplugins/forcefield/forcefield.cpp:374
+#, qt-format
+msgid "%1 Energy = %L2"
+msgstr ""
+
+#: qtplugins/forcefield/forcefield.cpp:420
 #, qt-format
 msgid "%1 Force Norm = %L2"
 msgstr ""
@@ -7427,27 +7432,28 @@ msgstr ""
 msgid "18"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:434
+#. i18n: file: qtplugins/spectra/spectradialog.ui:437
 #. i18n: ectx: property (text), widget (QLabel, label_5)
-msgid "Line Size:"
+msgctxt "Size in pixels of the line drawing the spectra"
+msgid "Line Width:"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:507
+#. i18n: file: qtplugins/spectra/spectradialog.ui:510
 #. i18n: ectx: property (text), widget (QTableWidget, dataTable)
 msgid "x"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:512
+#. i18n: file: qtplugins/spectra/spectradialog.ui:515
 #. i18n: ectx: property (text), widget (QTableWidget, dataTable)
 msgid "y"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:526
+#. i18n: file: qtplugins/spectra/spectradialog.ui:529
 #. i18n: ectx: property (text), widget (QPushButton, push_options)
 msgid "&Options…"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:568
+#. i18n: file: qtplugins/spectra/spectradialog.ui:571
 #. i18n: ectx: property (toolTip), widget (Avogadro::VTK::ChartWidget, plot)
 msgid ""
 "Controls:\n"
diff --git a/i18n/hu.po b/i18n/hu.po
index 00d97f8a39..24b49702c2 100644
--- a/i18n/hu.po
+++ b/i18n/hu.po
@@ -12,7 +12,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: avogadro\n"
 "Report-Msgid-Bugs-To: avogadro-devel@lists.sourceforge.net\n"
-"POT-Creation-Date: 2024-03-07 04:05+0000\n"
+"POT-Creation-Date: 2024-06-30 02:14+0000\n"
 "PO-Revision-Date: 2024-02-09 20:00+0000\n"
 "Last-Translator: Mirkó Attila <kisatti007hun@gmail.com>\n"
 "Language-Team: Hungarian <https://hosted.weblate.org/projects/avogadro/"
@@ -2978,7 +2978,7 @@ msgid "Render the force field visualizations for the atoms of the molecule."
 msgstr "Atomi erőtérek képi megjelenítése a molekula számára."
 
 #: qtplugins/forcefield/forcefield.cpp:88
-#: qtplugins/forcefield/forcefield.cpp:333 qtplugins/openbabel/openbabel.cpp:47
+#: qtplugins/forcefield/forcefield.cpp:339 qtplugins/openbabel/openbabel.cpp:47
 #: qtplugins/openbabel/openbabel.cpp:559
 msgid "Optimize Geometry"
 msgstr "Geometria optimalizálása"
@@ -3003,13 +3003,9 @@ msgstr "Kijelölt atomok lefagyásának feloldása"
 msgid "&Calculate"
 msgstr "S&zámítás"
 
-#: qtplugins/forcefield/forcefield.cpp:368
-#, qt-format
-msgid "%1 Energy = %L2"
-msgstr "%1 energia = %L2"
-
-#: qtplugins/forcefield/forcefield.cpp:369
-#: qtplugins/forcefield/forcefield.cpp:415
+#: qtplugins/forcefield/forcefield.cpp:245
+#: qtplugins/forcefield/forcefield.cpp:375
+#: qtplugins/forcefield/forcefield.cpp:421
 #: qtplugins/playertool/playertool.cpp:347
 #: qtplugins/playertool/playertool.cpp:379 qtplugins/surfaces/surfaces.cpp:912
 #: qtplugins/surfaces/surfaces.cpp:956 qtplugins/surfaces/surfaces.cpp:968
@@ -3017,7 +3013,16 @@ msgstr "%1 energia = %L2"
 msgid "Avogadro"
 msgstr "Avogadro"
 
-#: qtplugins/forcefield/forcefield.cpp:414
+#: qtplugins/forcefield/forcefield.cpp:246
+msgid "No atoms provided for optimization"
+msgstr ""
+
+#: qtplugins/forcefield/forcefield.cpp:374
+#, qt-format
+msgid "%1 Energy = %L2"
+msgstr "%1 energia = %L2"
+
+#: qtplugins/forcefield/forcefield.cpp:420
 #, qt-format
 msgid "%1 Force Norm = %L2"
 msgstr "%1 Erő Norm = %L2"
@@ -7733,27 +7738,28 @@ msgstr "16"
 msgid "18"
 msgstr "18"
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:434
+#. i18n: file: qtplugins/spectra/spectradialog.ui:437
 #. i18n: ectx: property (text), widget (QLabel, label_5)
-msgid "Line Size:"
-msgstr "Vonalméret:"
+msgctxt "Size in pixels of the line drawing the spectra"
+msgid "Line Width:"
+msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:507
+#. i18n: file: qtplugins/spectra/spectradialog.ui:510
 #. i18n: ectx: property (text), widget (QTableWidget, dataTable)
 msgid "x"
 msgstr "x"
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:512
+#. i18n: file: qtplugins/spectra/spectradialog.ui:515
 #. i18n: ectx: property (text), widget (QTableWidget, dataTable)
 msgid "y"
 msgstr "y"
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:526
+#. i18n: file: qtplugins/spectra/spectradialog.ui:529
 #. i18n: ectx: property (text), widget (QPushButton, push_options)
 msgid "&Options…"
 msgstr "&Beállítások…"
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:568
+#. i18n: file: qtplugins/spectra/spectradialog.ui:571
 #. i18n: ectx: property (toolTip), widget (Avogadro::VTK::ChartWidget, plot)
 msgid ""
 "Controls:\n"
@@ -8365,6 +8371,9 @@ msgctxt "EMAIL OF TRANSLATORS"
 msgid "Your emails"
 msgstr "E-mail-címek"
 
+#~ msgid "Line Size:"
+#~ msgstr "Vonalméret:"
+
 #~ msgid "Optimize"
 #~ msgstr "Optimalizálás"
 
diff --git a/i18n/id.po b/i18n/id.po
index 2e352d372e..68bd6a7c31 100644
--- a/i18n/id.po
+++ b/i18n/id.po
@@ -12,7 +12,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: avogadro\n"
 "Report-Msgid-Bugs-To: avogadro-devel@lists.sourceforge.net\n"
-"POT-Creation-Date: 2024-03-07 04:05+0000\n"
+"POT-Creation-Date: 2024-06-30 02:14+0000\n"
 "PO-Revision-Date: 2021-12-22 05:54+0000\n"
 "Last-Translator: Reza Almanda <rezaalmanda27@gmail.com>\n"
 "Language-Team: Indonesian <https://hosted.weblate.org/projects/avogadro/"
@@ -2988,7 +2988,7 @@ msgid "Render the force field visualizations for the atoms of the molecule."
 msgstr ""
 
 #: qtplugins/forcefield/forcefield.cpp:88
-#: qtplugins/forcefield/forcefield.cpp:333 qtplugins/openbabel/openbabel.cpp:47
+#: qtplugins/forcefield/forcefield.cpp:339 qtplugins/openbabel/openbabel.cpp:47
 #: qtplugins/openbabel/openbabel.cpp:559
 #, fuzzy
 msgid "Optimize Geometry"
@@ -3021,14 +3021,9 @@ msgstr "Menetapkan Pilihan Atom"
 msgid "&Calculate"
 msgstr "Menghitung"
 
-#: qtplugins/forcefield/forcefield.cpp:368
-#, fuzzy, qt-format
-#| msgid "Energy = %L1 %2"
-msgid "%1 Energy = %L2"
-msgstr "Energi = %L1 %2"
-
-#: qtplugins/forcefield/forcefield.cpp:369
-#: qtplugins/forcefield/forcefield.cpp:415
+#: qtplugins/forcefield/forcefield.cpp:245
+#: qtplugins/forcefield/forcefield.cpp:375
+#: qtplugins/forcefield/forcefield.cpp:421
 #: qtplugins/playertool/playertool.cpp:347
 #: qtplugins/playertool/playertool.cpp:379 qtplugins/surfaces/surfaces.cpp:912
 #: qtplugins/surfaces/surfaces.cpp:956 qtplugins/surfaces/surfaces.cpp:968
@@ -3036,7 +3031,17 @@ msgstr "Energi = %L1 %2"
 msgid "Avogadro"
 msgstr "Avogadro"
 
-#: qtplugins/forcefield/forcefield.cpp:414
+#: qtplugins/forcefield/forcefield.cpp:246
+msgid "No atoms provided for optimization"
+msgstr ""
+
+#: qtplugins/forcefield/forcefield.cpp:374
+#, fuzzy, qt-format
+#| msgid "Energy = %L1 %2"
+msgid "%1 Energy = %L2"
+msgstr "Energi = %L1 %2"
+
+#: qtplugins/forcefield/forcefield.cpp:420
 #, qt-format
 msgid "%1 Force Norm = %L2"
 msgstr ""
@@ -7889,30 +7894,30 @@ msgstr ""
 msgid "18"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:434
+#. i18n: file: qtplugins/spectra/spectradialog.ui:437
 #. i18n: ectx: property (text), widget (QLabel, label_5)
-#, fuzzy
-msgid "Line Size:"
-msgstr "luas terpuncak:"
+msgctxt "Size in pixels of the line drawing the spectra"
+msgid "Line Width:"
+msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:507
+#. i18n: file: qtplugins/spectra/spectradialog.ui:510
 #. i18n: ectx: property (text), widget (QTableWidget, dataTable)
 msgid "x"
 msgstr "x"
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:512
+#. i18n: file: qtplugins/spectra/spectradialog.ui:515
 #. i18n: ectx: property (text), widget (QTableWidget, dataTable)
 msgid "y"
 msgstr "y"
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:526
+#. i18n: file: qtplugins/spectra/spectradialog.ui:529
 #. i18n: ectx: property (text), widget (QPushButton, push_options)
 #, fuzzy
 #| msgid "Operations"
 msgid "&Options…"
 msgstr "Operasi"
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:568
+#. i18n: file: qtplugins/spectra/spectradialog.ui:571
 #. i18n: ectx: property (toolTip), widget (Avogadro::VTK::ChartWidget, plot)
 msgid ""
 "Controls:\n"
@@ -8524,6 +8529,10 @@ msgctxt "EMAIL OF TRANSLATORS"
 msgid "Your emails"
 msgstr "Email anda"
 
+#, fuzzy
+#~ msgid "Line Size:"
+#~ msgstr "luas terpuncak:"
+
 #, fuzzy
 #~| msgid "Optimization"
 #~ msgid "Optimize"
diff --git a/i18n/it.po b/i18n/it.po
index b68db7aa99..dd141e266b 100644
--- a/i18n/it.po
+++ b/i18n/it.po
@@ -14,7 +14,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: avogadro\n"
 "Report-Msgid-Bugs-To: avogadro-devel@lists.sourceforge.net\n"
-"POT-Creation-Date: 2024-03-07 04:05+0000\n"
+"POT-Creation-Date: 2024-06-30 02:14+0000\n"
 "PO-Revision-Date: 2023-10-13 13:02+0000\n"
 "Last-Translator: nicola zanna <zanna.nicola1@gmail.com>\n"
 "Language-Team: Italian <https://hosted.weblate.org/projects/avogadro/"
@@ -2978,7 +2978,7 @@ msgid "Render the force field visualizations for the atoms of the molecule."
 msgstr ""
 
 #: qtplugins/forcefield/forcefield.cpp:88
-#: qtplugins/forcefield/forcefield.cpp:333 qtplugins/openbabel/openbabel.cpp:47
+#: qtplugins/forcefield/forcefield.cpp:339 qtplugins/openbabel/openbabel.cpp:47
 #: qtplugins/openbabel/openbabel.cpp:559
 #, fuzzy
 msgid "Optimize Geometry"
@@ -3012,14 +3012,9 @@ msgstr "Fissa gli atomi selezionati"
 msgid "&Calculate"
 msgstr "Calcola"
 
-#: qtplugins/forcefield/forcefield.cpp:368
-#, fuzzy, qt-format
-#| msgid "Energy = %L1 %2"
-msgid "%1 Energy = %L2"
-msgstr "Energia = %L1 %2"
-
-#: qtplugins/forcefield/forcefield.cpp:369
-#: qtplugins/forcefield/forcefield.cpp:415
+#: qtplugins/forcefield/forcefield.cpp:245
+#: qtplugins/forcefield/forcefield.cpp:375
+#: qtplugins/forcefield/forcefield.cpp:421
 #: qtplugins/playertool/playertool.cpp:347
 #: qtplugins/playertool/playertool.cpp:379 qtplugins/surfaces/surfaces.cpp:912
 #: qtplugins/surfaces/surfaces.cpp:956 qtplugins/surfaces/surfaces.cpp:968
@@ -3027,7 +3022,17 @@ msgstr "Energia = %L1 %2"
 msgid "Avogadro"
 msgstr "Avogadro"
 
-#: qtplugins/forcefield/forcefield.cpp:414
+#: qtplugins/forcefield/forcefield.cpp:246
+msgid "No atoms provided for optimization"
+msgstr ""
+
+#: qtplugins/forcefield/forcefield.cpp:374
+#, fuzzy, qt-format
+#| msgid "Energy = %L1 %2"
+msgid "%1 Energy = %L2"
+msgstr "Energia = %L1 %2"
+
+#: qtplugins/forcefield/forcefield.cpp:420
 #, qt-format
 msgid "%1 Force Norm = %L2"
 msgstr ""
@@ -7906,29 +7911,28 @@ msgstr ""
 msgid "18"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:434
+#. i18n: file: qtplugins/spectra/spectradialog.ui:437
 #. i18n: ectx: property (text), widget (QLabel, label_5)
-#, fuzzy
-#| msgid "Jump Size:"
-msgid "Line Size:"
-msgstr "Dimensione Salto:"
+msgctxt "Size in pixels of the line drawing the spectra"
+msgid "Line Width:"
+msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:507
+#. i18n: file: qtplugins/spectra/spectradialog.ui:510
 #. i18n: ectx: property (text), widget (QTableWidget, dataTable)
 msgid "x"
 msgstr "x"
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:512
+#. i18n: file: qtplugins/spectra/spectradialog.ui:515
 #. i18n: ectx: property (text), widget (QTableWidget, dataTable)
 msgid "y"
 msgstr "y"
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:526
+#. i18n: file: qtplugins/spectra/spectradialog.ui:529
 #. i18n: ectx: property (text), widget (QPushButton, push_options)
 msgid "&Options…"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:568
+#. i18n: file: qtplugins/spectra/spectradialog.ui:571
 #. i18n: ectx: property (toolTip), widget (Avogadro::VTK::ChartWidget, plot)
 msgid ""
 "Controls:\n"
@@ -8608,6 +8612,11 @@ msgstr ""
 "primes2h@ubuntu.com,vito.fasano@gmail.com,mcarlo.95@gmail.com,,,"
 "lexluxsox@hotmail.it"
 
+#, fuzzy
+#~| msgid "Jump Size:"
+#~ msgid "Line Size:"
+#~ msgstr "Dimensione Salto:"
+
 #, fuzzy
 #~| msgid "Optimization"
 #~ msgid "Optimize"
diff --git a/i18n/ja.po b/i18n/ja.po
index 8eba753b4f..d1c5c0d680 100644
--- a/i18n/ja.po
+++ b/i18n/ja.po
@@ -8,7 +8,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: avogadro\n"
 "Report-Msgid-Bugs-To: avogadro-devel@lists.sourceforge.net\n"
-"POT-Creation-Date: 2024-03-07 04:05+0000\n"
+"POT-Creation-Date: 2024-06-30 02:14+0000\n"
 "PO-Revision-Date: 2023-12-30 03:59+0000\n"
 "Last-Translator: Eisuke Kawashima <e.kawaschima+weblate@gmail.com>\n"
 "Language-Team: Japanese <https://hosted.weblate.org/projects/avogadro/"
@@ -2922,7 +2922,7 @@ msgid "Render the force field visualizations for the atoms of the molecule."
 msgstr ""
 
 #: qtplugins/forcefield/forcefield.cpp:88
-#: qtplugins/forcefield/forcefield.cpp:333 qtplugins/openbabel/openbabel.cpp:47
+#: qtplugins/forcefield/forcefield.cpp:339 qtplugins/openbabel/openbabel.cpp:47
 #: qtplugins/openbabel/openbabel.cpp:559
 msgid "Optimize Geometry"
 msgstr "構造最適化"
@@ -2955,13 +2955,9 @@ msgstr "選択した原子の固定を解除"
 msgid "&Calculate"
 msgstr "計算 (&C)"
 
-#: qtplugins/forcefield/forcefield.cpp:368
-#, qt-format
-msgid "%1 Energy = %L2"
-msgstr "%1 エネルギー= %L2"
-
-#: qtplugins/forcefield/forcefield.cpp:369
-#: qtplugins/forcefield/forcefield.cpp:415
+#: qtplugins/forcefield/forcefield.cpp:245
+#: qtplugins/forcefield/forcefield.cpp:375
+#: qtplugins/forcefield/forcefield.cpp:421
 #: qtplugins/playertool/playertool.cpp:347
 #: qtplugins/playertool/playertool.cpp:379 qtplugins/surfaces/surfaces.cpp:912
 #: qtplugins/surfaces/surfaces.cpp:956 qtplugins/surfaces/surfaces.cpp:968
@@ -2969,7 +2965,16 @@ msgstr "%1 エネルギー= %L2"
 msgid "Avogadro"
 msgstr "Avogadro"
 
-#: qtplugins/forcefield/forcefield.cpp:414
+#: qtplugins/forcefield/forcefield.cpp:246
+msgid "No atoms provided for optimization"
+msgstr ""
+
+#: qtplugins/forcefield/forcefield.cpp:374
+#, qt-format
+msgid "%1 Energy = %L2"
+msgstr "%1 エネルギー= %L2"
+
+#: qtplugins/forcefield/forcefield.cpp:420
 #, qt-format
 msgid "%1 Force Norm = %L2"
 msgstr ""
@@ -7694,31 +7699,30 @@ msgstr ""
 msgid "18"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:434
+#. i18n: file: qtplugins/spectra/spectradialog.ui:437
 #. i18n: ectx: property (text), widget (QLabel, label_5)
-#, fuzzy
-#| msgid "Line width:"
-msgid "Line Size:"
-msgstr "線幅:"
+msgctxt "Size in pixels of the line drawing the spectra"
+msgid "Line Width:"
+msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:507
+#. i18n: file: qtplugins/spectra/spectradialog.ui:510
 #. i18n: ectx: property (text), widget (QTableWidget, dataTable)
 msgid "x"
 msgstr "x"
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:512
+#. i18n: file: qtplugins/spectra/spectradialog.ui:515
 #. i18n: ectx: property (text), widget (QTableWidget, dataTable)
 msgid "y"
 msgstr "y"
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:526
+#. i18n: file: qtplugins/spectra/spectradialog.ui:529
 #. i18n: ectx: property (text), widget (QPushButton, push_options)
 #, fuzzy
 #| msgid "Operations"
 msgid "&Options…"
 msgstr "オプション (&O)"
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:568
+#. i18n: file: qtplugins/spectra/spectradialog.ui:571
 #. i18n: ectx: property (toolTip), widget (Avogadro::VTK::ChartWidget, plot)
 msgid ""
 "Controls:\n"
@@ -8366,6 +8370,11 @@ msgstr ""
 "com,,,,,avogadro-devel@lists.sourceforge.net,,ktns.87@gmail.com,ken."
 "i54k@gmail.com,,iwao.aoyama@gmail.com,,"
 
+#, fuzzy
+#~| msgid "Line width:"
+#~ msgid "Line Size:"
+#~ msgstr "線幅:"
+
 #, fuzzy
 #~| msgid "Optimization"
 #~ msgid "Optimize"
diff --git a/i18n/ka.po b/i18n/ka.po
index 105448421f..8ebf693452 100644
--- a/i18n/ka.po
+++ b/i18n/ka.po
@@ -8,7 +8,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: Avogadro 1.95.1\n"
 "Report-Msgid-Bugs-To: avogadro-devel@lists.sourceforge.net\n"
-"POT-Creation-Date: 2024-03-07 04:05+0000\n"
+"POT-Creation-Date: 2024-06-30 02:14+0000\n"
 "PO-Revision-Date: 2024-02-24 01:26+0000\n"
 "Last-Translator: Temuri Doghonadze <temuri.doghonadze@gmail.com>\n"
 "Language-Team: Georgian <https://hosted.weblate.org/projects/avogadro/"
@@ -2838,7 +2838,7 @@ msgid "Render the force field visualizations for the atoms of the molecule."
 msgstr ""
 
 #: qtplugins/forcefield/forcefield.cpp:88
-#: qtplugins/forcefield/forcefield.cpp:333 qtplugins/openbabel/openbabel.cpp:47
+#: qtplugins/forcefield/forcefield.cpp:339 qtplugins/openbabel/openbabel.cpp:47
 #: qtplugins/openbabel/openbabel.cpp:559
 msgid "Optimize Geometry"
 msgstr "გეომეტრიის ოპტიმიზაცია"
@@ -2863,13 +2863,9 @@ msgstr "მონიშნული ატომების გადნობ
 msgid "&Calculate"
 msgstr "&გამოთვლა"
 
-#: qtplugins/forcefield/forcefield.cpp:368
-#, qt-format
-msgid "%1 Energy = %L2"
-msgstr ""
-
-#: qtplugins/forcefield/forcefield.cpp:369
-#: qtplugins/forcefield/forcefield.cpp:415
+#: qtplugins/forcefield/forcefield.cpp:245
+#: qtplugins/forcefield/forcefield.cpp:375
+#: qtplugins/forcefield/forcefield.cpp:421
 #: qtplugins/playertool/playertool.cpp:347
 #: qtplugins/playertool/playertool.cpp:379 qtplugins/surfaces/surfaces.cpp:912
 #: qtplugins/surfaces/surfaces.cpp:956 qtplugins/surfaces/surfaces.cpp:968
@@ -2877,7 +2873,16 @@ msgstr ""
 msgid "Avogadro"
 msgstr "Avogadro"
 
-#: qtplugins/forcefield/forcefield.cpp:414
+#: qtplugins/forcefield/forcefield.cpp:246
+msgid "No atoms provided for optimization"
+msgstr ""
+
+#: qtplugins/forcefield/forcefield.cpp:374
+#, qt-format
+msgid "%1 Energy = %L2"
+msgstr ""
+
+#: qtplugins/forcefield/forcefield.cpp:420
 #, qt-format
 msgid "%1 Force Norm = %L2"
 msgstr ""
@@ -7442,27 +7447,28 @@ msgstr ""
 msgid "18"
 msgstr "18"
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:434
+#. i18n: file: qtplugins/spectra/spectradialog.ui:437
 #. i18n: ectx: property (text), widget (QLabel, label_5)
-msgid "Line Size:"
-msgstr "ხაზის ზომა:"
+msgctxt "Size in pixels of the line drawing the spectra"
+msgid "Line Width:"
+msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:507
+#. i18n: file: qtplugins/spectra/spectradialog.ui:510
 #. i18n: ectx: property (text), widget (QTableWidget, dataTable)
 msgid "x"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:512
+#. i18n: file: qtplugins/spectra/spectradialog.ui:515
 #. i18n: ectx: property (text), widget (QTableWidget, dataTable)
 msgid "y"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:526
+#. i18n: file: qtplugins/spectra/spectradialog.ui:529
 #. i18n: ectx: property (text), widget (QPushButton, push_options)
 msgid "&Options…"
 msgstr "&მორგება…"
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:568
+#. i18n: file: qtplugins/spectra/spectradialog.ui:571
 #. i18n: ectx: property (toolTip), widget (Avogadro::VTK::ChartWidget, plot)
 msgid ""
 "Controls:\n"
@@ -8025,6 +8031,9 @@ msgctxt "EMAIL OF TRANSLATORS"
 msgid "Your emails"
 msgstr "Temuri.doghonadze@gmail.com"
 
+#~ msgid "Line Size:"
+#~ msgstr "ხაზის ზომა:"
+
 #~ msgid "Optimize"
 #~ msgstr "ოპტიმიზაცია"
 
diff --git a/i18n/kn.po b/i18n/kn.po
index a7416dcb8e..7b07d404e6 100644
--- a/i18n/kn.po
+++ b/i18n/kn.po
@@ -7,7 +7,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: avogadro\n"
 "Report-Msgid-Bugs-To: avogadro-devel@lists.sourceforge.net\n"
-"POT-Creation-Date: 2024-03-07 04:05+0000\n"
+"POT-Creation-Date: 2024-06-30 02:14+0000\n"
 "PO-Revision-Date: 2023-07-02 10:48+0000\n"
 "Last-Translator: Ajith <donate.zrqx@proton.me>\n"
 "Language-Team: Kannada <https://hosted.weblate.org/projects/avogadro/"
@@ -2847,7 +2847,7 @@ msgid "Render the force field visualizations for the atoms of the molecule."
 msgstr ""
 
 #: qtplugins/forcefield/forcefield.cpp:88
-#: qtplugins/forcefield/forcefield.cpp:333 qtplugins/openbabel/openbabel.cpp:47
+#: qtplugins/forcefield/forcefield.cpp:339 qtplugins/openbabel/openbabel.cpp:47
 #: qtplugins/openbabel/openbabel.cpp:559
 msgid "Optimize Geometry"
 msgstr ""
@@ -2874,13 +2874,9 @@ msgstr "ಅನಿಮೇಶನ್"
 msgid "&Calculate"
 msgstr ""
 
-#: qtplugins/forcefield/forcefield.cpp:368
-#, qt-format
-msgid "%1 Energy = %L2"
-msgstr ""
-
-#: qtplugins/forcefield/forcefield.cpp:369
-#: qtplugins/forcefield/forcefield.cpp:415
+#: qtplugins/forcefield/forcefield.cpp:245
+#: qtplugins/forcefield/forcefield.cpp:375
+#: qtplugins/forcefield/forcefield.cpp:421
 #: qtplugins/playertool/playertool.cpp:347
 #: qtplugins/playertool/playertool.cpp:379 qtplugins/surfaces/surfaces.cpp:912
 #: qtplugins/surfaces/surfaces.cpp:956 qtplugins/surfaces/surfaces.cpp:968
@@ -2888,7 +2884,16 @@ msgstr ""
 msgid "Avogadro"
 msgstr "ಅವೊಗಡ್ರೊ"
 
-#: qtplugins/forcefield/forcefield.cpp:414
+#: qtplugins/forcefield/forcefield.cpp:246
+msgid "No atoms provided for optimization"
+msgstr ""
+
+#: qtplugins/forcefield/forcefield.cpp:374
+#, qt-format
+msgid "%1 Energy = %L2"
+msgstr ""
+
+#: qtplugins/forcefield/forcefield.cpp:420
 #, qt-format
 msgid "%1 Force Norm = %L2"
 msgstr ""
@@ -7454,27 +7459,28 @@ msgstr ""
 msgid "18"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:434
+#. i18n: file: qtplugins/spectra/spectradialog.ui:437
 #. i18n: ectx: property (text), widget (QLabel, label_5)
-msgid "Line Size:"
+msgctxt "Size in pixels of the line drawing the spectra"
+msgid "Line Width:"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:507
+#. i18n: file: qtplugins/spectra/spectradialog.ui:510
 #. i18n: ectx: property (text), widget (QTableWidget, dataTable)
 msgid "x"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:512
+#. i18n: file: qtplugins/spectra/spectradialog.ui:515
 #. i18n: ectx: property (text), widget (QTableWidget, dataTable)
 msgid "y"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:526
+#. i18n: file: qtplugins/spectra/spectradialog.ui:529
 #. i18n: ectx: property (text), widget (QPushButton, push_options)
 msgid "&Options…"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:568
+#. i18n: file: qtplugins/spectra/spectradialog.ui:571
 #. i18n: ectx: property (toolTip), widget (Avogadro::VTK::ChartWidget, plot)
 msgid ""
 "Controls:\n"
diff --git a/i18n/ko.po b/i18n/ko.po
index 97b6c155db..1194e360d9 100644
--- a/i18n/ko.po
+++ b/i18n/ko.po
@@ -10,7 +10,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: avogadro\n"
 "Report-Msgid-Bugs-To: avogadro-devel@lists.sourceforge.net\n"
-"POT-Creation-Date: 2024-03-07 04:05+0000\n"
+"POT-Creation-Date: 2024-06-30 02:14+0000\n"
 "PO-Revision-Date: 2024-03-17 18:01+0000\n"
 "Last-Translator: LibreTranslate <noreply-mt-libretranslate@weblate.org>\n"
 "Language-Team: Korean <https://hosted.weblate.org/projects/avogadro/"
@@ -2923,7 +2923,7 @@ msgid "Render the force field visualizations for the atoms of the molecule."
 msgstr "분자의 원자에 대한 역장 시각화를 렌더링합니다."
 
 #: qtplugins/forcefield/forcefield.cpp:88
-#: qtplugins/forcefield/forcefield.cpp:333 qtplugins/openbabel/openbabel.cpp:47
+#: qtplugins/forcefield/forcefield.cpp:339 qtplugins/openbabel/openbabel.cpp:47
 #: qtplugins/openbabel/openbabel.cpp:559
 msgid "Optimize Geometry"
 msgstr "기하학 최적화"
@@ -2948,13 +2948,9 @@ msgstr "선택된 원자 멈춤 해제"
 msgid "&Calculate"
 msgstr "&계산"
 
-#: qtplugins/forcefield/forcefield.cpp:368
-#, qt-format
-msgid "%1 Energy = %L2"
-msgstr "%1 에너지 = %L2"
-
-#: qtplugins/forcefield/forcefield.cpp:369
-#: qtplugins/forcefield/forcefield.cpp:415
+#: qtplugins/forcefield/forcefield.cpp:245
+#: qtplugins/forcefield/forcefield.cpp:375
+#: qtplugins/forcefield/forcefield.cpp:421
 #: qtplugins/playertool/playertool.cpp:347
 #: qtplugins/playertool/playertool.cpp:379 qtplugins/surfaces/surfaces.cpp:912
 #: qtplugins/surfaces/surfaces.cpp:956 qtplugins/surfaces/surfaces.cpp:968
@@ -2962,7 +2958,16 @@ msgstr "%1 에너지 = %L2"
 msgid "Avogadro"
 msgstr "아보가드로"
 
-#: qtplugins/forcefield/forcefield.cpp:414
+#: qtplugins/forcefield/forcefield.cpp:246
+msgid "No atoms provided for optimization"
+msgstr ""
+
+#: qtplugins/forcefield/forcefield.cpp:374
+#, qt-format
+msgid "%1 Energy = %L2"
+msgstr "%1 에너지 = %L2"
+
+#: qtplugins/forcefield/forcefield.cpp:420
 #, qt-format
 msgid "%1 Force Norm = %L2"
 msgstr "%1 강도 기준 = %L2"
@@ -5572,21 +5577,20 @@ msgid ""
 msgstr ""
 "<html><head/><body><p>형식 사양. 각 문자는 원자당 쓸 값을 나타냅니다:</"
 "p><p><span style=\" font-weight:600;\">#</span> - 원자 색인 (1, 2, ..., "
-"numAtoms)<br/><span style=\" font-weight:600;\">Z</span> - 원자 번호 (예: "
-"탄소의 경우 \"6\")<br/><span style=\" font-weight:600;\">G</span> - GAMESS-"
-"스타일 원자 번호 (예: 탄소의 경우 \"6.0\")<br/><span style=\" font-"
-"weight:600;\">N</span> - 원소 이름 (예: \"탄소\")<br/><span style=\" font-"
-"weight:600;\">S</span> - 요소 기호 (예: 탄소의 경우 \"C\")<br/><span style=\""
-" font-weight:600;\">x</span> - X 위치 좌표<br/><span style=\" font-"
-"weight:600;\">y</span> - Y 위치 좌표<br/><span style=\" font-weight:600;\""
-">z</span> - Z 위치 좌표<br/><span style=\" font-weight:600;\">a</span> - 'a' "
-"격자 좌표 (결정체만 해당)<br/><span style=\" font-weight:600;\">b</span> - "
-"'b' 격자 좌표 (결정체만 해당)<br/><span style=\" font-weight:600;\">c</span> "
-"- 'c' 격자 좌표 (결정체만 해당)<br/><span style=\" font-weight:600;\">_</"
-"span> - 정렬에 유용한 문자 공백 (\" \")<br/><span style=\" font-weight:600;\""
-">0</span> - 최적화 플래그에 유용한 문자 0 (\"0\")<br/><span style=\" font-"
-"weight:600;\">1</span> - 최적화 플래그에 유용한 문자 1 (\"1\")<br/"
-"></p></body></html>"
+"numAtoms)<br/><span style=\" font-weight:600;\">Z</span> - 원자 번호 (예: 탄"
+"소의 경우 \"6\")<br/><span style=\" font-weight:600;\">G</span> - GAMESS-스타"
+"일 원자 번호 (예: 탄소의 경우 \"6.0\")<br/><span style=\" font-weight:600;"
+"\">N</span> - 원소 이름 (예: \"탄소\")<br/><span style=\" font-weight:600;"
+"\">S</span> - 요소 기호 (예: 탄소의 경우 \"C\")<br/><span style=\" font-"
+"weight:600;\">x</span> - X 위치 좌표<br/><span style=\" font-weight:600;"
+"\">y</span> - Y 위치 좌표<br/><span style=\" font-weight:600;\">z</span> - Z "
+"위치 좌표<br/><span style=\" font-weight:600;\">a</span> - 'a' 격자 좌표 (결"
+"정체만 해당)<br/><span style=\" font-weight:600;\">b</span> - 'b' 격자 좌표 "
+"(결정체만 해당)<br/><span style=\" font-weight:600;\">c</span> - 'c' 격자 좌"
+"표 (결정체만 해당)<br/><span style=\" font-weight:600;\">_</span> - 정렬에 유"
+"용한 문자 공백 (\" \")<br/><span style=\" font-weight:600;\">0</span> - 최적"
+"화 플래그에 유용한 문자 0 (\"0\")<br/><span style=\" font-weight:600;\">1</"
+"span> - 최적화 플래그에 유용한 문자 1 (\"1\")<br/></p></body></html>"
 
 #. i18n: file: qtplugins/coordinateeditor/coordinateeditordialog.ui:78
 #. i18n: ectx: property (text), widget (QToolButton, help)
@@ -6886,8 +6890,9 @@ msgstr "득점 방법:"
 msgid ""
 "scoring method for the genetic algorithm (RMSD = geometric distance, energy "
 "= lowest energies)"
-msgstr "유전 알고리즘에 대한 계산 방법 (RMSD = 기하학 거리, 에너지 = 가장 낮은 "
-"에너지)"
+msgstr ""
+"유전 알고리즘에 대한 계산 방법 (RMSD = 기하학 거리, 에너지 = 가장 낮은 에너"
+"지)"
 
 #. i18n: file: qtplugins/openbabel/conformersearchdialog.ui:191
 #. i18n: ectx: property (text), item, widget (QComboBox, scoringComboBox)
@@ -7634,27 +7639,28 @@ msgstr "16"
 msgid "18"
 msgstr "18"
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:434
+#. i18n: file: qtplugins/spectra/spectradialog.ui:437
 #. i18n: ectx: property (text), widget (QLabel, label_5)
-msgid "Line Size:"
-msgstr "선 크기:"
+msgctxt "Size in pixels of the line drawing the spectra"
+msgid "Line Width:"
+msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:507
+#. i18n: file: qtplugins/spectra/spectradialog.ui:510
 #. i18n: ectx: property (text), widget (QTableWidget, dataTable)
 msgid "x"
 msgstr "x"
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:512
+#. i18n: file: qtplugins/spectra/spectradialog.ui:515
 #. i18n: ectx: property (text), widget (QTableWidget, dataTable)
 msgid "y"
 msgstr "y"
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:526
+#. i18n: file: qtplugins/spectra/spectradialog.ui:529
 #. i18n: ectx: property (text), widget (QPushButton, push_options)
 msgid "&Options…"
 msgstr "&옵션…"
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:568
+#. i18n: file: qtplugins/spectra/spectradialog.ui:571
 #. i18n: ectx: property (toolTip), widget (Avogadro::VTK::ChartWidget, plot)
 msgid ""
 "Controls:\n"
@@ -8255,13 +8261,16 @@ msgstr "야에모프 입력을 표시하겠습니까?"
 msgctxt "NAME OF TRANSLATORS"
 msgid "Your names"
 msgstr ""
-"Launchpad Contributions:,Avogadro Team,Bundo,Kim Hanjo,Para, Sang-hyeon "
-"Lee,dlonie, park gong gu, seokhyun an, simmon"
+"Launchpad Contributions:,Avogadro Team,Bundo,Kim Hanjo,Para, Sang-hyeon Lee,"
+"dlonie, park gong gu, seokhyun an, simmon"
 
 msgctxt "EMAIL OF TRANSLATORS"
 msgid "Your emails"
 msgstr "loniedavid@gmail.com, an6207@gmail.com, simmon@nplob.com"
 
+#~ msgid "Line Size:"
+#~ msgstr "선 크기:"
+
 #, fuzzy
 #~| msgid "Optimize Geometry"
 #~ msgid "Optimize"
diff --git a/i18n/ms.po b/i18n/ms.po
index 6455681617..542752c6f3 100644
--- a/i18n/ms.po
+++ b/i18n/ms.po
@@ -8,7 +8,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: avogadro\n"
 "Report-Msgid-Bugs-To: avogadro-devel@lists.sourceforge.net\n"
-"POT-Creation-Date: 2024-03-07 04:05+0000\n"
+"POT-Creation-Date: 2024-06-30 02:14+0000\n"
 "PO-Revision-Date: 2021-04-04 15:26+0000\n"
 "Last-Translator: Kazuki278 <muadz.hakim.7@gmail.com>\n"
 "Language-Team: Malay <https://hosted.weblate.org/projects/avogadro/"
@@ -3011,7 +3011,7 @@ msgid "Render the force field visualizations for the atoms of the molecule."
 msgstr ""
 
 #: qtplugins/forcefield/forcefield.cpp:88
-#: qtplugins/forcefield/forcefield.cpp:333 qtplugins/openbabel/openbabel.cpp:47
+#: qtplugins/forcefield/forcefield.cpp:339 qtplugins/openbabel/openbabel.cpp:47
 #: qtplugins/openbabel/openbabel.cpp:559
 #, fuzzy
 msgid "Optimize Geometry"
@@ -3044,14 +3044,9 @@ msgstr "Baiki Atom Terpilih"
 msgid "&Calculate"
 msgstr "Kira"
 
-#: qtplugins/forcefield/forcefield.cpp:368
-#, fuzzy, qt-format
-#| msgid "Energy = %L1 %2"
-msgid "%1 Energy = %L2"
-msgstr "Tenaga = %L1 %2"
-
-#: qtplugins/forcefield/forcefield.cpp:369
-#: qtplugins/forcefield/forcefield.cpp:415
+#: qtplugins/forcefield/forcefield.cpp:245
+#: qtplugins/forcefield/forcefield.cpp:375
+#: qtplugins/forcefield/forcefield.cpp:421
 #: qtplugins/playertool/playertool.cpp:347
 #: qtplugins/playertool/playertool.cpp:379 qtplugins/surfaces/surfaces.cpp:912
 #: qtplugins/surfaces/surfaces.cpp:956 qtplugins/surfaces/surfaces.cpp:968
@@ -3059,7 +3054,17 @@ msgstr "Tenaga = %L1 %2"
 msgid "Avogadro"
 msgstr "Avogadro"
 
-#: qtplugins/forcefield/forcefield.cpp:414
+#: qtplugins/forcefield/forcefield.cpp:246
+msgid "No atoms provided for optimization"
+msgstr ""
+
+#: qtplugins/forcefield/forcefield.cpp:374
+#, fuzzy, qt-format
+#| msgid "Energy = %L1 %2"
+msgid "%1 Energy = %L2"
+msgstr "Tenaga = %L1 %2"
+
+#: qtplugins/forcefield/forcefield.cpp:420
 #, qt-format
 msgid "%1 Force Norm = %L2"
 msgstr ""
@@ -7988,29 +7993,28 @@ msgstr ""
 msgid "18"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:434
+#. i18n: file: qtplugins/spectra/spectradialog.ui:437
 #. i18n: ectx: property (text), widget (QLabel, label_5)
-#, fuzzy
-#| msgid "Jump Size:"
-msgid "Line Size:"
-msgstr "Saiz Lompat:"
+msgctxt "Size in pixels of the line drawing the spectra"
+msgid "Line Width:"
+msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:507
+#. i18n: file: qtplugins/spectra/spectradialog.ui:510
 #. i18n: ectx: property (text), widget (QTableWidget, dataTable)
 msgid "x"
 msgstr "x"
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:512
+#. i18n: file: qtplugins/spectra/spectradialog.ui:515
 #. i18n: ectx: property (text), widget (QTableWidget, dataTable)
 msgid "y"
 msgstr "y"
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:526
+#. i18n: file: qtplugins/spectra/spectradialog.ui:529
 #. i18n: ectx: property (text), widget (QPushButton, push_options)
 msgid "&Options…"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:568
+#. i18n: file: qtplugins/spectra/spectradialog.ui:571
 #. i18n: ectx: property (toolTip), widget (Avogadro::VTK::ChartWidget, plot)
 msgid ""
 "Controls:\n"
@@ -8640,6 +8644,11 @@ msgstr ""
 ",,,,,avogadro-devel@lists.sourceforge.net,,,,avogadro-devel@lists."
 "sourceforge.net,,,,,avogadro-devel@lists.sourceforge.net,,"
 
+#, fuzzy
+#~| msgid "Jump Size:"
+#~ msgid "Line Size:"
+#~ msgstr "Saiz Lompat:"
+
 #, fuzzy
 #~| msgid "Optimization"
 #~ msgid "Optimize"
diff --git a/i18n/nb.po b/i18n/nb.po
index 4058728fe7..055db06764 100644
--- a/i18n/nb.po
+++ b/i18n/nb.po
@@ -7,7 +7,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: avogadro\n"
 "Report-Msgid-Bugs-To: avogadro-devel@lists.sourceforge.net\n"
-"POT-Creation-Date: 2024-03-07 04:05+0000\n"
+"POT-Creation-Date: 2024-06-30 02:14+0000\n"
 "PO-Revision-Date: 2023-04-27 21:50+0000\n"
 "Last-Translator: Allan Nordhøy <epost@anotheragency.no>\n"
 "Language-Team: Norwegian Bokmål <https://hosted.weblate.org/projects/"
@@ -2924,7 +2924,7 @@ msgid "Render the force field visualizations for the atoms of the molecule."
 msgstr ""
 
 #: qtplugins/forcefield/forcefield.cpp:88
-#: qtplugins/forcefield/forcefield.cpp:333 qtplugins/openbabel/openbabel.cpp:47
+#: qtplugins/forcefield/forcefield.cpp:339 qtplugins/openbabel/openbabel.cpp:47
 #: qtplugins/openbabel/openbabel.cpp:559
 msgid "Optimize Geometry"
 msgstr "Optimiser geometri"
@@ -2955,14 +2955,9 @@ msgstr "Bind valgte atomer"
 msgid "&Calculate"
 msgstr "Beregn energi"
 
-#: qtplugins/forcefield/forcefield.cpp:368
-#, fuzzy, qt-format
-#| msgid "Energy = %L1 %2"
-msgid "%1 Energy = %L2"
-msgstr "Energi = %L1 %2"
-
-#: qtplugins/forcefield/forcefield.cpp:369
-#: qtplugins/forcefield/forcefield.cpp:415
+#: qtplugins/forcefield/forcefield.cpp:245
+#: qtplugins/forcefield/forcefield.cpp:375
+#: qtplugins/forcefield/forcefield.cpp:421
 #: qtplugins/playertool/playertool.cpp:347
 #: qtplugins/playertool/playertool.cpp:379 qtplugins/surfaces/surfaces.cpp:912
 #: qtplugins/surfaces/surfaces.cpp:956 qtplugins/surfaces/surfaces.cpp:968
@@ -2970,7 +2965,17 @@ msgstr "Energi = %L1 %2"
 msgid "Avogadro"
 msgstr "Avogadro"
 
-#: qtplugins/forcefield/forcefield.cpp:414
+#: qtplugins/forcefield/forcefield.cpp:246
+msgid "No atoms provided for optimization"
+msgstr ""
+
+#: qtplugins/forcefield/forcefield.cpp:374
+#, fuzzy, qt-format
+#| msgid "Energy = %L1 %2"
+msgid "%1 Energy = %L2"
+msgstr "Energi = %L1 %2"
+
+#: qtplugins/forcefield/forcefield.cpp:420
 #, qt-format
 msgid "%1 Force Norm = %L2"
 msgstr ""
@@ -7792,27 +7797,28 @@ msgstr ""
 msgid "18"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:434
+#. i18n: file: qtplugins/spectra/spectradialog.ui:437
 #. i18n: ectx: property (text), widget (QLabel, label_5)
-msgid "Line Size:"
+msgctxt "Size in pixels of the line drawing the spectra"
+msgid "Line Width:"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:507
+#. i18n: file: qtplugins/spectra/spectradialog.ui:510
 #. i18n: ectx: property (text), widget (QTableWidget, dataTable)
 msgid "x"
 msgstr "x"
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:512
+#. i18n: file: qtplugins/spectra/spectradialog.ui:515
 #. i18n: ectx: property (text), widget (QTableWidget, dataTable)
 msgid "y"
 msgstr "y"
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:526
+#. i18n: file: qtplugins/spectra/spectradialog.ui:529
 #. i18n: ectx: property (text), widget (QPushButton, push_options)
 msgid "&Options…"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:568
+#. i18n: file: qtplugins/spectra/spectradialog.ui:571
 #. i18n: ectx: property (toolTip), widget (Avogadro::VTK::ChartWidget, plot)
 msgid ""
 "Controls:\n"
diff --git a/i18n/nl.po b/i18n/nl.po
index 27511bcc35..2600f2a029 100644
--- a/i18n/nl.po
+++ b/i18n/nl.po
@@ -10,7 +10,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: avogadro\n"
 "Report-Msgid-Bugs-To: avogadro-devel@lists.sourceforge.net\n"
-"POT-Creation-Date: 2024-03-07 04:05+0000\n"
+"POT-Creation-Date: 2024-06-30 02:14+0000\n"
 "PO-Revision-Date: 2024-01-03 21:23+0000\n"
 "Last-Translator: Koen Roggemans <koen@roggemans.net>\n"
 "Language-Team: Dutch <https://hosted.weblate.org/projects/avogadro/"
@@ -2926,7 +2926,7 @@ msgid "Render the force field visualizations for the atoms of the molecule."
 msgstr ""
 
 #: qtplugins/forcefield/forcefield.cpp:88
-#: qtplugins/forcefield/forcefield.cpp:333 qtplugins/openbabel/openbabel.cpp:47
+#: qtplugins/forcefield/forcefield.cpp:339 qtplugins/openbabel/openbabel.cpp:47
 #: qtplugins/openbabel/openbabel.cpp:559
 #, fuzzy
 msgid "Optimize Geometry"
@@ -2959,14 +2959,9 @@ msgstr "Herstel geselecteerde atomen"
 msgid "&Calculate"
 msgstr "Bereken"
 
-#: qtplugins/forcefield/forcefield.cpp:368
-#, fuzzy, qt-format
-#| msgid "Energy = %L1 %2"
-msgid "%1 Energy = %L2"
-msgstr "Energie = %L1 %2"
-
-#: qtplugins/forcefield/forcefield.cpp:369
-#: qtplugins/forcefield/forcefield.cpp:415
+#: qtplugins/forcefield/forcefield.cpp:245
+#: qtplugins/forcefield/forcefield.cpp:375
+#: qtplugins/forcefield/forcefield.cpp:421
 #: qtplugins/playertool/playertool.cpp:347
 #: qtplugins/playertool/playertool.cpp:379 qtplugins/surfaces/surfaces.cpp:912
 #: qtplugins/surfaces/surfaces.cpp:956 qtplugins/surfaces/surfaces.cpp:968
@@ -2974,7 +2969,17 @@ msgstr "Energie = %L1 %2"
 msgid "Avogadro"
 msgstr "Avogadro"
 
-#: qtplugins/forcefield/forcefield.cpp:414
+#: qtplugins/forcefield/forcefield.cpp:246
+msgid "No atoms provided for optimization"
+msgstr ""
+
+#: qtplugins/forcefield/forcefield.cpp:374
+#, fuzzy, qt-format
+#| msgid "Energy = %L1 %2"
+msgid "%1 Energy = %L2"
+msgstr "Energie = %L1 %2"
+
+#: qtplugins/forcefield/forcefield.cpp:420
 #, qt-format
 msgid "%1 Force Norm = %L2"
 msgstr ""
@@ -7803,29 +7808,28 @@ msgstr ""
 msgid "18"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:434
+#. i18n: file: qtplugins/spectra/spectradialog.ui:437
 #. i18n: ectx: property (text), widget (QLabel, label_5)
-#, fuzzy
-#| msgid "Jump Size:"
-msgid "Line Size:"
-msgstr "Sprong grootte:"
+msgctxt "Size in pixels of the line drawing the spectra"
+msgid "Line Width:"
+msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:507
+#. i18n: file: qtplugins/spectra/spectradialog.ui:510
 #. i18n: ectx: property (text), widget (QTableWidget, dataTable)
 msgid "x"
 msgstr "x"
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:512
+#. i18n: file: qtplugins/spectra/spectradialog.ui:515
 #. i18n: ectx: property (text), widget (QTableWidget, dataTable)
 msgid "y"
 msgstr "y"
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:526
+#. i18n: file: qtplugins/spectra/spectradialog.ui:529
 #. i18n: ectx: property (text), widget (QPushButton, push_options)
 msgid "&Options…"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:568
+#. i18n: file: qtplugins/spectra/spectradialog.ui:571
 #. i18n: ectx: property (toolTip), widget (Avogadro::VTK::ChartWidget, plot)
 msgid ""
 "Controls:\n"
@@ -8457,6 +8461,11 @@ msgstr ""
 "com,,,,avogadro-devel@lists.sourceforge.net,,,kristof.bal@gmail.com,m."
 "vandruten@smoose.nl,sanderd17@gmail.com,vtijms@gmail.com,"
 
+#, fuzzy
+#~| msgid "Jump Size:"
+#~ msgid "Line Size:"
+#~ msgstr "Sprong grootte:"
+
 #, fuzzy
 #~| msgid "Optimization"
 #~ msgid "Optimize"
diff --git a/i18n/oc.po b/i18n/oc.po
index dda5d42f5e..307233ae1a 100644
--- a/i18n/oc.po
+++ b/i18n/oc.po
@@ -7,7 +7,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: avogadro\n"
 "Report-Msgid-Bugs-To: avogadro-devel@lists.sourceforge.net\n"
-"POT-Creation-Date: 2024-03-07 04:05+0000\n"
+"POT-Creation-Date: 2024-06-30 02:14+0000\n"
 "PO-Revision-Date: 2016-06-10 06:57+0000\n"
 "Last-Translator: Cédric VALMARY (Tot en òc) <cvalmary@yahoo.fr>\n"
 "Language-Team: Occitan (post 1500) <oc@li.org>\n"
@@ -2928,7 +2928,7 @@ msgid "Render the force field visualizations for the atoms of the molecule."
 msgstr ""
 
 #: qtplugins/forcefield/forcefield.cpp:88
-#: qtplugins/forcefield/forcefield.cpp:333 qtplugins/openbabel/openbabel.cpp:47
+#: qtplugins/forcefield/forcefield.cpp:339 qtplugins/openbabel/openbabel.cpp:47
 #: qtplugins/openbabel/openbabel.cpp:559
 msgid "Optimize Geometry"
 msgstr ""
@@ -2960,14 +2960,9 @@ msgstr "Suprimir un atòm"
 msgid "&Calculate"
 msgstr "Calcular"
 
-#: qtplugins/forcefield/forcefield.cpp:368
-#, fuzzy, qt-format
-#| msgid "Energy = %L1 %2"
-msgid "%1 Energy = %L2"
-msgstr "Energia = %L1 %2"
-
-#: qtplugins/forcefield/forcefield.cpp:369
-#: qtplugins/forcefield/forcefield.cpp:415
+#: qtplugins/forcefield/forcefield.cpp:245
+#: qtplugins/forcefield/forcefield.cpp:375
+#: qtplugins/forcefield/forcefield.cpp:421
 #: qtplugins/playertool/playertool.cpp:347
 #: qtplugins/playertool/playertool.cpp:379 qtplugins/surfaces/surfaces.cpp:912
 #: qtplugins/surfaces/surfaces.cpp:956 qtplugins/surfaces/surfaces.cpp:968
@@ -2975,7 +2970,17 @@ msgstr "Energia = %L1 %2"
 msgid "Avogadro"
 msgstr "Avogadro"
 
-#: qtplugins/forcefield/forcefield.cpp:414
+#: qtplugins/forcefield/forcefield.cpp:246
+msgid "No atoms provided for optimization"
+msgstr ""
+
+#: qtplugins/forcefield/forcefield.cpp:374
+#, fuzzy, qt-format
+#| msgid "Energy = %L1 %2"
+msgid "%1 Energy = %L2"
+msgstr "Energia = %L1 %2"
+
+#: qtplugins/forcefield/forcefield.cpp:420
 #, qt-format
 msgid "%1 Force Norm = %L2"
 msgstr ""
@@ -7768,27 +7773,28 @@ msgstr ""
 msgid "18"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:434
+#. i18n: file: qtplugins/spectra/spectradialog.ui:437
 #. i18n: ectx: property (text), widget (QLabel, label_5)
-msgid "Line Size:"
+msgctxt "Size in pixels of the line drawing the spectra"
+msgid "Line Width:"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:507
+#. i18n: file: qtplugins/spectra/spectradialog.ui:510
 #. i18n: ectx: property (text), widget (QTableWidget, dataTable)
 msgid "x"
 msgstr "x"
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:512
+#. i18n: file: qtplugins/spectra/spectradialog.ui:515
 #. i18n: ectx: property (text), widget (QTableWidget, dataTable)
 msgid "y"
 msgstr "y"
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:526
+#. i18n: file: qtplugins/spectra/spectradialog.ui:529
 #. i18n: ectx: property (text), widget (QPushButton, push_options)
 msgid "&Options…"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:568
+#. i18n: file: qtplugins/spectra/spectradialog.ui:571
 #. i18n: ectx: property (toolTip), widget (Avogadro::VTK::ChartWidget, plot)
 msgid ""
 "Controls:\n"
diff --git a/i18n/pl.po b/i18n/pl.po
index 712123c507..377f979724 100644
--- a/i18n/pl.po
+++ b/i18n/pl.po
@@ -9,7 +9,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: avogadro\n"
 "Report-Msgid-Bugs-To: avogadro-devel@lists.sourceforge.net\n"
-"POT-Creation-Date: 2024-03-07 04:05+0000\n"
+"POT-Creation-Date: 2024-06-30 02:14+0000\n"
 "PO-Revision-Date: 2023-06-20 10:49+0000\n"
 "Last-Translator: Jakub Brzeski <jakubbrzeski4@gmail.com>\n"
 "Language-Team: Polish <https://hosted.weblate.org/projects/avogadro/"
@@ -2907,7 +2907,7 @@ msgid "Render the force field visualizations for the atoms of the molecule."
 msgstr ""
 
 #: qtplugins/forcefield/forcefield.cpp:88
-#: qtplugins/forcefield/forcefield.cpp:333 qtplugins/openbabel/openbabel.cpp:47
+#: qtplugins/forcefield/forcefield.cpp:339 qtplugins/openbabel/openbabel.cpp:47
 #: qtplugins/openbabel/openbabel.cpp:559
 msgid "Optimize Geometry"
 msgstr ""
@@ -2939,13 +2939,9 @@ msgstr "Importuj zaznaczone atomy"
 msgid "&Calculate"
 msgstr "Oblicz"
 
-#: qtplugins/forcefield/forcefield.cpp:368
-#, qt-format
-msgid "%1 Energy = %L2"
-msgstr ""
-
-#: qtplugins/forcefield/forcefield.cpp:369
-#: qtplugins/forcefield/forcefield.cpp:415
+#: qtplugins/forcefield/forcefield.cpp:245
+#: qtplugins/forcefield/forcefield.cpp:375
+#: qtplugins/forcefield/forcefield.cpp:421
 #: qtplugins/playertool/playertool.cpp:347
 #: qtplugins/playertool/playertool.cpp:379 qtplugins/surfaces/surfaces.cpp:912
 #: qtplugins/surfaces/surfaces.cpp:956 qtplugins/surfaces/surfaces.cpp:968
@@ -2953,7 +2949,16 @@ msgstr ""
 msgid "Avogadro"
 msgstr "Avogadro"
 
-#: qtplugins/forcefield/forcefield.cpp:414
+#: qtplugins/forcefield/forcefield.cpp:246
+msgid "No atoms provided for optimization"
+msgstr ""
+
+#: qtplugins/forcefield/forcefield.cpp:374
+#, qt-format
+msgid "%1 Energy = %L2"
+msgstr ""
+
+#: qtplugins/forcefield/forcefield.cpp:420
 #, qt-format
 msgid "%1 Force Norm = %L2"
 msgstr ""
@@ -7684,27 +7689,28 @@ msgstr ""
 msgid "18"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:434
+#. i18n: file: qtplugins/spectra/spectradialog.ui:437
 #. i18n: ectx: property (text), widget (QLabel, label_5)
-msgid "Line Size:"
+msgctxt "Size in pixels of the line drawing the spectra"
+msgid "Line Width:"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:507
+#. i18n: file: qtplugins/spectra/spectradialog.ui:510
 #. i18n: ectx: property (text), widget (QTableWidget, dataTable)
 msgid "x"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:512
+#. i18n: file: qtplugins/spectra/spectradialog.ui:515
 #. i18n: ectx: property (text), widget (QTableWidget, dataTable)
 msgid "y"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:526
+#. i18n: file: qtplugins/spectra/spectradialog.ui:529
 #. i18n: ectx: property (text), widget (QPushButton, push_options)
 msgid "&Options…"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:568
+#. i18n: file: qtplugins/spectra/spectradialog.ui:571
 #. i18n: ectx: property (toolTip), widget (Avogadro::VTK::ChartWidget, plot)
 msgid ""
 "Controls:\n"
diff --git a/i18n/pt.po b/i18n/pt.po
index 4e44f3d53a..171e421b7c 100644
--- a/i18n/pt.po
+++ b/i18n/pt.po
@@ -12,7 +12,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: avogadro\n"
 "Report-Msgid-Bugs-To: avogadro-devel@lists.sourceforge.net\n"
-"POT-Creation-Date: 2024-03-07 04:05+0000\n"
+"POT-Creation-Date: 2024-06-30 02:14+0000\n"
 "PO-Revision-Date: 2024-03-24 15:20+0000\n"
 "Last-Translator: ssantos <ssantos@web.de>\n"
 "Language-Team: Portuguese <https://hosted.weblate.org/projects/avogadro/"
@@ -3067,7 +3067,7 @@ msgid "Render the force field visualizations for the atoms of the molecule."
 msgstr "Renderizar visualizações do campo de força para os átomos da molécula."
 
 #: qtplugins/forcefield/forcefield.cpp:88
-#: qtplugins/forcefield/forcefield.cpp:333 qtplugins/openbabel/openbabel.cpp:47
+#: qtplugins/forcefield/forcefield.cpp:339 qtplugins/openbabel/openbabel.cpp:47
 #: qtplugins/openbabel/openbabel.cpp:559
 msgid "Optimize Geometry"
 msgstr "Otimizar Geometria"
@@ -3100,14 +3100,9 @@ msgstr "Corrigir átomos seleccionados"
 msgid "&Calculate"
 msgstr "Calcular"
 
-#: qtplugins/forcefield/forcefield.cpp:368
-#, fuzzy, qt-format
-#| msgid "Energy = %L1 %2"
-msgid "%1 Energy = %L2"
-msgstr "Energia = %L1 %2"
-
-#: qtplugins/forcefield/forcefield.cpp:369
-#: qtplugins/forcefield/forcefield.cpp:415
+#: qtplugins/forcefield/forcefield.cpp:245
+#: qtplugins/forcefield/forcefield.cpp:375
+#: qtplugins/forcefield/forcefield.cpp:421
 #: qtplugins/playertool/playertool.cpp:347
 #: qtplugins/playertool/playertool.cpp:379 qtplugins/surfaces/surfaces.cpp:912
 #: qtplugins/surfaces/surfaces.cpp:956 qtplugins/surfaces/surfaces.cpp:968
@@ -3115,7 +3110,17 @@ msgstr "Energia = %L1 %2"
 msgid "Avogadro"
 msgstr "Avogadro"
 
-#: qtplugins/forcefield/forcefield.cpp:414
+#: qtplugins/forcefield/forcefield.cpp:246
+msgid "No atoms provided for optimization"
+msgstr ""
+
+#: qtplugins/forcefield/forcefield.cpp:374
+#, fuzzy, qt-format
+#| msgid "Energy = %L1 %2"
+msgid "%1 Energy = %L2"
+msgstr "Energia = %L1 %2"
+
+#: qtplugins/forcefield/forcefield.cpp:420
 #, qt-format
 msgid "%1 Force Norm = %L2"
 msgstr ""
@@ -8140,29 +8145,30 @@ msgstr ""
 msgid "18"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:434
+#. i18n: file: qtplugins/spectra/spectradialog.ui:437
 #. i18n: ectx: property (text), widget (QLabel, label_5)
-msgid "Line Size:"
+msgctxt "Size in pixels of the line drawing the spectra"
+msgid "Line Width:"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:507
+#. i18n: file: qtplugins/spectra/spectradialog.ui:510
 #. i18n: ectx: property (text), widget (QTableWidget, dataTable)
 msgid "x"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:512
+#. i18n: file: qtplugins/spectra/spectradialog.ui:515
 #. i18n: ectx: property (text), widget (QTableWidget, dataTable)
 msgid "y"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:526
+#. i18n: file: qtplugins/spectra/spectradialog.ui:529
 #. i18n: ectx: property (text), widget (QPushButton, push_options)
 #, fuzzy
 #| msgid "Operations"
 msgid "&Options…"
 msgstr "Operações"
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:568
+#. i18n: file: qtplugins/spectra/spectradialog.ui:571
 #. i18n: ectx: property (toolTip), widget (Avogadro::VTK::ChartWidget, plot)
 msgid ""
 "Controls:\n"
diff --git a/i18n/pt_BR.po b/i18n/pt_BR.po
index e792dbf272..d63ce80919 100644
--- a/i18n/pt_BR.po
+++ b/i18n/pt_BR.po
@@ -11,7 +11,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: avogadro\n"
 "Report-Msgid-Bugs-To: avogadro-devel@lists.sourceforge.net\n"
-"POT-Creation-Date: 2024-03-07 04:05+0000\n"
+"POT-Creation-Date: 2024-06-30 02:14+0000\n"
 "PO-Revision-Date: 2024-02-05 22:54+0000\n"
 "Last-Translator: Iago Emanuel <iagoemanuel@live.com>\n"
 "Language-Team: Portuguese (Brazil) <https://hosted.weblate.org/projects/"
@@ -3078,7 +3078,7 @@ msgid "Render the force field visualizations for the atoms of the molecule."
 msgstr "Renderizar visualizações do campo de força para os átomos da molécula."
 
 #: qtplugins/forcefield/forcefield.cpp:88
-#: qtplugins/forcefield/forcefield.cpp:333 qtplugins/openbabel/openbabel.cpp:47
+#: qtplugins/forcefield/forcefield.cpp:339 qtplugins/openbabel/openbabel.cpp:47
 #: qtplugins/openbabel/openbabel.cpp:559
 msgid "Optimize Geometry"
 msgstr "Otimizar Geometria"
@@ -3111,14 +3111,9 @@ msgstr "Fixar Átomos Selecionados"
 msgid "&Calculate"
 msgstr "Calcular"
 
-#: qtplugins/forcefield/forcefield.cpp:368
-#, fuzzy, qt-format
-#| msgid "Energy = %L1 %2"
-msgid "%1 Energy = %L2"
-msgstr "Energia = %L1 %2"
-
-#: qtplugins/forcefield/forcefield.cpp:369
-#: qtplugins/forcefield/forcefield.cpp:415
+#: qtplugins/forcefield/forcefield.cpp:245
+#: qtplugins/forcefield/forcefield.cpp:375
+#: qtplugins/forcefield/forcefield.cpp:421
 #: qtplugins/playertool/playertool.cpp:347
 #: qtplugins/playertool/playertool.cpp:379 qtplugins/surfaces/surfaces.cpp:912
 #: qtplugins/surfaces/surfaces.cpp:956 qtplugins/surfaces/surfaces.cpp:968
@@ -3126,7 +3121,17 @@ msgstr "Energia = %L1 %2"
 msgid "Avogadro"
 msgstr "Avogadro"
 
-#: qtplugins/forcefield/forcefield.cpp:414
+#: qtplugins/forcefield/forcefield.cpp:246
+msgid "No atoms provided for optimization"
+msgstr ""
+
+#: qtplugins/forcefield/forcefield.cpp:374
+#, fuzzy, qt-format
+#| msgid "Energy = %L1 %2"
+msgid "%1 Energy = %L2"
+msgstr "Energia = %L1 %2"
+
+#: qtplugins/forcefield/forcefield.cpp:420
 #, qt-format
 msgid "%1 Force Norm = %L2"
 msgstr ""
@@ -8154,30 +8159,30 @@ msgstr ""
 msgid "18"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:434
+#. i18n: file: qtplugins/spectra/spectradialog.ui:437
 #. i18n: ectx: property (text), widget (QLabel, label_5)
-#, fuzzy
-msgid "Line Size:"
-msgstr "Largura do pico:"
+msgctxt "Size in pixels of the line drawing the spectra"
+msgid "Line Width:"
+msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:507
+#. i18n: file: qtplugins/spectra/spectradialog.ui:510
 #. i18n: ectx: property (text), widget (QTableWidget, dataTable)
 msgid "x"
 msgstr "x"
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:512
+#. i18n: file: qtplugins/spectra/spectradialog.ui:515
 #. i18n: ectx: property (text), widget (QTableWidget, dataTable)
 msgid "y"
 msgstr "y"
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:526
+#. i18n: file: qtplugins/spectra/spectradialog.ui:529
 #. i18n: ectx: property (text), widget (QPushButton, push_options)
 #, fuzzy
 #| msgid "Operations"
 msgid "&Options…"
 msgstr "Operações"
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:568
+#. i18n: file: qtplugins/spectra/spectradialog.ui:571
 #. i18n: ectx: property (toolTip), widget (Avogadro::VTK::ChartWidget, plot)
 msgid ""
 "Controls:\n"
@@ -8775,6 +8780,10 @@ msgctxt "EMAIL OF TRANSLATORS"
 msgid "Your emails"
 msgstr "Seus e-mails"
 
+#, fuzzy
+#~ msgid "Line Size:"
+#~ msgstr "Largura do pico:"
+
 #, fuzzy
 #~| msgid "Optimization"
 #~ msgid "Optimize"
diff --git a/i18n/ro.po b/i18n/ro.po
index 76ae1a03d0..72c54f71ed 100644
--- a/i18n/ro.po
+++ b/i18n/ro.po
@@ -7,7 +7,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: Avogadro 1.90.0\n"
 "Report-Msgid-Bugs-To: avogadro-devel@lists.sourceforge.net\n"
-"POT-Creation-Date: 2024-03-07 04:05+0000\n"
+"POT-Creation-Date: 2024-06-30 02:14+0000\n"
 "PO-Revision-Date: 2023-12-31 04:46+0000\n"
 "Last-Translator: Remus-Gabriel Chelu <remusgabriel.chelu@disroot.org>\n"
 "Language-Team: Romanian <https://hosted.weblate.org/projects/avogadro/"
@@ -2832,7 +2832,7 @@ msgid "Render the force field visualizations for the atoms of the molecule."
 msgstr ""
 
 #: qtplugins/forcefield/forcefield.cpp:88
-#: qtplugins/forcefield/forcefield.cpp:333 qtplugins/openbabel/openbabel.cpp:47
+#: qtplugins/forcefield/forcefield.cpp:339 qtplugins/openbabel/openbabel.cpp:47
 #: qtplugins/openbabel/openbabel.cpp:559
 msgid "Optimize Geometry"
 msgstr ""
@@ -2857,13 +2857,9 @@ msgstr ""
 msgid "&Calculate"
 msgstr ""
 
-#: qtplugins/forcefield/forcefield.cpp:368
-#, qt-format
-msgid "%1 Energy = %L2"
-msgstr ""
-
-#: qtplugins/forcefield/forcefield.cpp:369
-#: qtplugins/forcefield/forcefield.cpp:415
+#: qtplugins/forcefield/forcefield.cpp:245
+#: qtplugins/forcefield/forcefield.cpp:375
+#: qtplugins/forcefield/forcefield.cpp:421
 #: qtplugins/playertool/playertool.cpp:347
 #: qtplugins/playertool/playertool.cpp:379 qtplugins/surfaces/surfaces.cpp:912
 #: qtplugins/surfaces/surfaces.cpp:956 qtplugins/surfaces/surfaces.cpp:968
@@ -2871,7 +2867,16 @@ msgstr ""
 msgid "Avogadro"
 msgstr ""
 
-#: qtplugins/forcefield/forcefield.cpp:414
+#: qtplugins/forcefield/forcefield.cpp:246
+msgid "No atoms provided for optimization"
+msgstr ""
+
+#: qtplugins/forcefield/forcefield.cpp:374
+#, qt-format
+msgid "%1 Energy = %L2"
+msgstr ""
+
+#: qtplugins/forcefield/forcefield.cpp:420
 #, qt-format
 msgid "%1 Force Norm = %L2"
 msgstr ""
@@ -7412,27 +7417,28 @@ msgstr ""
 msgid "18"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:434
+#. i18n: file: qtplugins/spectra/spectradialog.ui:437
 #. i18n: ectx: property (text), widget (QLabel, label_5)
-msgid "Line Size:"
+msgctxt "Size in pixels of the line drawing the spectra"
+msgid "Line Width:"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:507
+#. i18n: file: qtplugins/spectra/spectradialog.ui:510
 #. i18n: ectx: property (text), widget (QTableWidget, dataTable)
 msgid "x"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:512
+#. i18n: file: qtplugins/spectra/spectradialog.ui:515
 #. i18n: ectx: property (text), widget (QTableWidget, dataTable)
 msgid "y"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:526
+#. i18n: file: qtplugins/spectra/spectradialog.ui:529
 #. i18n: ectx: property (text), widget (QPushButton, push_options)
 msgid "&Options…"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:568
+#. i18n: file: qtplugins/spectra/spectradialog.ui:571
 #. i18n: ectx: property (toolTip), widget (Avogadro::VTK::ChartWidget, plot)
 msgid ""
 "Controls:\n"
diff --git a/i18n/ru.po b/i18n/ru.po
index 59dddf1d35..f8097fa09c 100644
--- a/i18n/ru.po
+++ b/i18n/ru.po
@@ -16,7 +16,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: avogadro\n"
 "Report-Msgid-Bugs-To: avogadro-devel@lists.sourceforge.net\n"
-"POT-Creation-Date: 2024-03-07 04:05+0000\n"
+"POT-Creation-Date: 2024-06-30 02:14+0000\n"
 "PO-Revision-Date: 2023-11-03 21:33+0000\n"
 "Last-Translator: Ivanushka <oplata.kes1@mail.ru>\n"
 "Language-Team: Russian <https://hosted.weblate.org/projects/avogadro/"
@@ -3035,7 +3035,7 @@ msgid "Render the force field visualizations for the atoms of the molecule."
 msgstr ""
 
 #: qtplugins/forcefield/forcefield.cpp:88
-#: qtplugins/forcefield/forcefield.cpp:333 qtplugins/openbabel/openbabel.cpp:47
+#: qtplugins/forcefield/forcefield.cpp:339 qtplugins/openbabel/openbabel.cpp:47
 #: qtplugins/openbabel/openbabel.cpp:559
 #, fuzzy
 msgid "Optimize Geometry"
@@ -3068,14 +3068,9 @@ msgstr "Зафиксировать выделенные атомы"
 msgid "&Calculate"
 msgstr "Рассчитать"
 
-#: qtplugins/forcefield/forcefield.cpp:368
-#, fuzzy, qt-format
-#| msgid "Energy = %L1 %2"
-msgid "%1 Energy = %L2"
-msgstr "Энергия = %L1 %2"
-
-#: qtplugins/forcefield/forcefield.cpp:369
-#: qtplugins/forcefield/forcefield.cpp:415
+#: qtplugins/forcefield/forcefield.cpp:245
+#: qtplugins/forcefield/forcefield.cpp:375
+#: qtplugins/forcefield/forcefield.cpp:421
 #: qtplugins/playertool/playertool.cpp:347
 #: qtplugins/playertool/playertool.cpp:379 qtplugins/surfaces/surfaces.cpp:912
 #: qtplugins/surfaces/surfaces.cpp:956 qtplugins/surfaces/surfaces.cpp:968
@@ -3083,7 +3078,17 @@ msgstr "Энергия = %L1 %2"
 msgid "Avogadro"
 msgstr "Avogadro"
 
-#: qtplugins/forcefield/forcefield.cpp:414
+#: qtplugins/forcefield/forcefield.cpp:246
+msgid "No atoms provided for optimization"
+msgstr ""
+
+#: qtplugins/forcefield/forcefield.cpp:374
+#, fuzzy, qt-format
+#| msgid "Energy = %L1 %2"
+msgid "%1 Energy = %L2"
+msgstr "Энергия = %L1 %2"
+
+#: qtplugins/forcefield/forcefield.cpp:420
 #, qt-format
 msgid "%1 Force Norm = %L2"
 msgstr ""
@@ -7949,29 +7954,28 @@ msgstr ""
 msgid "18"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:434
+#. i18n: file: qtplugins/spectra/spectradialog.ui:437
 #. i18n: ectx: property (text), widget (QLabel, label_5)
-#, fuzzy
-#| msgid "Jump Size:"
-msgid "Line Size:"
-msgstr "Размер перехода:"
+msgctxt "Size in pixels of the line drawing the spectra"
+msgid "Line Width:"
+msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:507
+#. i18n: file: qtplugins/spectra/spectradialog.ui:510
 #. i18n: ectx: property (text), widget (QTableWidget, dataTable)
 msgid "x"
 msgstr "x"
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:512
+#. i18n: file: qtplugins/spectra/spectradialog.ui:515
 #. i18n: ectx: property (text), widget (QTableWidget, dataTable)
 msgid "y"
 msgstr "y"
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:526
+#. i18n: file: qtplugins/spectra/spectradialog.ui:529
 #. i18n: ectx: property (text), widget (QPushButton, push_options)
 msgid "&Options…"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:568
+#. i18n: file: qtplugins/spectra/spectradialog.ui:571
 #. i18n: ectx: property (toolTip), widget (Avogadro::VTK::ChartWidget, plot)
 msgid ""
 "Controls:\n"
@@ -8625,6 +8629,11 @@ msgstr ""
 "roman_romul@mail.ru,parukhin@gmail.com,,hippi90ub@gmail.com,madcad@yandex."
 "ru,,yuray@komyakino.ru,dn2010@km.ru"
 
+#, fuzzy
+#~| msgid "Jump Size:"
+#~ msgid "Line Size:"
+#~ msgstr "Размер перехода:"
+
 #, fuzzy
 #~| msgid "Optimization"
 #~ msgid "Optimize"
diff --git a/i18n/sa.po b/i18n/sa.po
index 87c963063d..ffe22787fb 100644
--- a/i18n/sa.po
+++ b/i18n/sa.po
@@ -6,7 +6,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: Avogadro 1.93.0\n"
 "Report-Msgid-Bugs-To: avogadro-devel@lists.sourceforge.net\n"
-"POT-Creation-Date: 2024-03-07 04:05+0000\n"
+"POT-Creation-Date: 2024-06-30 02:14+0000\n"
 "PO-Revision-Date: 2021-06-01 14:30+0000\n"
 "Last-Translator: rahul bahuguna <rahulbiit@gmail.com>\n"
 "Language-Team: Sanskrit <https://hosted.weblate.org/projects/avogadro/"
@@ -2829,7 +2829,7 @@ msgid "Render the force field visualizations for the atoms of the molecule."
 msgstr ""
 
 #: qtplugins/forcefield/forcefield.cpp:88
-#: qtplugins/forcefield/forcefield.cpp:333 qtplugins/openbabel/openbabel.cpp:47
+#: qtplugins/forcefield/forcefield.cpp:339 qtplugins/openbabel/openbabel.cpp:47
 #: qtplugins/openbabel/openbabel.cpp:559
 msgid "Optimize Geometry"
 msgstr ""
@@ -2854,13 +2854,9 @@ msgstr ""
 msgid "&Calculate"
 msgstr ""
 
-#: qtplugins/forcefield/forcefield.cpp:368
-#, qt-format
-msgid "%1 Energy = %L2"
-msgstr ""
-
-#: qtplugins/forcefield/forcefield.cpp:369
-#: qtplugins/forcefield/forcefield.cpp:415
+#: qtplugins/forcefield/forcefield.cpp:245
+#: qtplugins/forcefield/forcefield.cpp:375
+#: qtplugins/forcefield/forcefield.cpp:421
 #: qtplugins/playertool/playertool.cpp:347
 #: qtplugins/playertool/playertool.cpp:379 qtplugins/surfaces/surfaces.cpp:912
 #: qtplugins/surfaces/surfaces.cpp:956 qtplugins/surfaces/surfaces.cpp:968
@@ -2868,7 +2864,16 @@ msgstr ""
 msgid "Avogadro"
 msgstr ""
 
-#: qtplugins/forcefield/forcefield.cpp:414
+#: qtplugins/forcefield/forcefield.cpp:246
+msgid "No atoms provided for optimization"
+msgstr ""
+
+#: qtplugins/forcefield/forcefield.cpp:374
+#, qt-format
+msgid "%1 Energy = %L2"
+msgstr ""
+
+#: qtplugins/forcefield/forcefield.cpp:420
 #, qt-format
 msgid "%1 Force Norm = %L2"
 msgstr ""
@@ -7409,27 +7414,28 @@ msgstr ""
 msgid "18"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:434
+#. i18n: file: qtplugins/spectra/spectradialog.ui:437
 #. i18n: ectx: property (text), widget (QLabel, label_5)
-msgid "Line Size:"
+msgctxt "Size in pixels of the line drawing the spectra"
+msgid "Line Width:"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:507
+#. i18n: file: qtplugins/spectra/spectradialog.ui:510
 #. i18n: ectx: property (text), widget (QTableWidget, dataTable)
 msgid "x"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:512
+#. i18n: file: qtplugins/spectra/spectradialog.ui:515
 #. i18n: ectx: property (text), widget (QTableWidget, dataTable)
 msgid "y"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:526
+#. i18n: file: qtplugins/spectra/spectradialog.ui:529
 #. i18n: ectx: property (text), widget (QPushButton, push_options)
 msgid "&Options…"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:568
+#. i18n: file: qtplugins/spectra/spectradialog.ui:571
 #. i18n: ectx: property (toolTip), widget (Avogadro::VTK::ChartWidget, plot)
 msgid ""
 "Controls:\n"
diff --git a/i18n/sk.po b/i18n/sk.po
index 0a4c5c88b1..afa6d72a06 100644
--- a/i18n/sk.po
+++ b/i18n/sk.po
@@ -7,7 +7,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: avogadro\n"
 "Report-Msgid-Bugs-To: avogadro-devel@lists.sourceforge.net\n"
-"POT-Creation-Date: 2024-03-07 04:05+0000\n"
+"POT-Creation-Date: 2024-06-30 02:14+0000\n"
 "PO-Revision-Date: 2016-06-10 06:52+0000\n"
 "Last-Translator: Avogadro Team <avogadro-devel@lists.sourceforge.net>\n"
 "Language-Team: Slovak <sk@li.org>\n"
@@ -2920,7 +2920,7 @@ msgid "Render the force field visualizations for the atoms of the molecule."
 msgstr ""
 
 #: qtplugins/forcefield/forcefield.cpp:88
-#: qtplugins/forcefield/forcefield.cpp:333 qtplugins/openbabel/openbabel.cpp:47
+#: qtplugins/forcefield/forcefield.cpp:339 qtplugins/openbabel/openbabel.cpp:47
 #: qtplugins/openbabel/openbabel.cpp:559
 msgid "Optimize Geometry"
 msgstr ""
@@ -2952,13 +2952,9 @@ msgstr "Fixovať vybrané atómy"
 msgid "&Calculate"
 msgstr "Vypočítať"
 
-#: qtplugins/forcefield/forcefield.cpp:368
-#, qt-format
-msgid "%1 Energy = %L2"
-msgstr ""
-
-#: qtplugins/forcefield/forcefield.cpp:369
-#: qtplugins/forcefield/forcefield.cpp:415
+#: qtplugins/forcefield/forcefield.cpp:245
+#: qtplugins/forcefield/forcefield.cpp:375
+#: qtplugins/forcefield/forcefield.cpp:421
 #: qtplugins/playertool/playertool.cpp:347
 #: qtplugins/playertool/playertool.cpp:379 qtplugins/surfaces/surfaces.cpp:912
 #: qtplugins/surfaces/surfaces.cpp:956 qtplugins/surfaces/surfaces.cpp:968
@@ -2966,7 +2962,16 @@ msgstr ""
 msgid "Avogadro"
 msgstr "Avogadro"
 
-#: qtplugins/forcefield/forcefield.cpp:414
+#: qtplugins/forcefield/forcefield.cpp:246
+msgid "No atoms provided for optimization"
+msgstr ""
+
+#: qtplugins/forcefield/forcefield.cpp:374
+#, qt-format
+msgid "%1 Energy = %L2"
+msgstr ""
+
+#: qtplugins/forcefield/forcefield.cpp:420
 #, qt-format
 msgid "%1 Force Norm = %L2"
 msgstr ""
@@ -7757,27 +7762,28 @@ msgstr ""
 msgid "18"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:434
+#. i18n: file: qtplugins/spectra/spectradialog.ui:437
 #. i18n: ectx: property (text), widget (QLabel, label_5)
-msgid "Line Size:"
+msgctxt "Size in pixels of the line drawing the spectra"
+msgid "Line Width:"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:507
+#. i18n: file: qtplugins/spectra/spectradialog.ui:510
 #. i18n: ectx: property (text), widget (QTableWidget, dataTable)
 msgid "x"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:512
+#. i18n: file: qtplugins/spectra/spectradialog.ui:515
 #. i18n: ectx: property (text), widget (QTableWidget, dataTable)
 msgid "y"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:526
+#. i18n: file: qtplugins/spectra/spectradialog.ui:529
 #. i18n: ectx: property (text), widget (QPushButton, push_options)
 msgid "&Options…"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:568
+#. i18n: file: qtplugins/spectra/spectradialog.ui:571
 #. i18n: ectx: property (toolTip), widget (Avogadro::VTK::ChartWidget, plot)
 msgid ""
 "Controls:\n"
diff --git a/i18n/sl.po b/i18n/sl.po
index e9c9c5e4e4..3a19795e24 100644
--- a/i18n/sl.po
+++ b/i18n/sl.po
@@ -8,7 +8,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: avogadro\n"
 "Report-Msgid-Bugs-To: avogadro-devel@lists.sourceforge.net\n"
-"POT-Creation-Date: 2024-03-07 04:05+0000\n"
+"POT-Creation-Date: 2024-06-30 02:14+0000\n"
 "PO-Revision-Date: 2016-06-10 06:51+0000\n"
 "Last-Translator: Matej Urbančič <mateju@svn.gnome.org>\n"
 "Language-Team: Slovenian <sl@li.org>\n"
@@ -3013,7 +3013,7 @@ msgid "Render the force field visualizations for the atoms of the molecule."
 msgstr ""
 
 #: qtplugins/forcefield/forcefield.cpp:88
-#: qtplugins/forcefield/forcefield.cpp:333 qtplugins/openbabel/openbabel.cpp:47
+#: qtplugins/forcefield/forcefield.cpp:339 qtplugins/openbabel/openbabel.cpp:47
 #: qtplugins/openbabel/openbabel.cpp:559
 #, fuzzy
 msgid "Optimize Geometry"
@@ -3046,14 +3046,9 @@ msgstr "Popravi izbrane atome"
 msgid "&Calculate"
 msgstr "Izračunaj"
 
-#: qtplugins/forcefield/forcefield.cpp:368
-#, fuzzy, qt-format
-#| msgid "Energy = %L1 %2"
-msgid "%1 Energy = %L2"
-msgstr "Energija = %L1 %2"
-
-#: qtplugins/forcefield/forcefield.cpp:369
-#: qtplugins/forcefield/forcefield.cpp:415
+#: qtplugins/forcefield/forcefield.cpp:245
+#: qtplugins/forcefield/forcefield.cpp:375
+#: qtplugins/forcefield/forcefield.cpp:421
 #: qtplugins/playertool/playertool.cpp:347
 #: qtplugins/playertool/playertool.cpp:379 qtplugins/surfaces/surfaces.cpp:912
 #: qtplugins/surfaces/surfaces.cpp:956 qtplugins/surfaces/surfaces.cpp:968
@@ -3061,7 +3056,17 @@ msgstr "Energija = %L1 %2"
 msgid "Avogadro"
 msgstr "Avogadro"
 
-#: qtplugins/forcefield/forcefield.cpp:414
+#: qtplugins/forcefield/forcefield.cpp:246
+msgid "No atoms provided for optimization"
+msgstr ""
+
+#: qtplugins/forcefield/forcefield.cpp:374
+#, fuzzy, qt-format
+#| msgid "Energy = %L1 %2"
+msgid "%1 Energy = %L2"
+msgstr "Energija = %L1 %2"
+
+#: qtplugins/forcefield/forcefield.cpp:420
 #, qt-format
 msgid "%1 Force Norm = %L2"
 msgstr ""
@@ -7968,29 +7973,28 @@ msgstr ""
 msgid "18"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:434
+#. i18n: file: qtplugins/spectra/spectradialog.ui:437
 #. i18n: ectx: property (text), widget (QLabel, label_5)
-#, fuzzy
-#| msgid "Jump Size:"
-msgid "Line Size:"
-msgstr "Velikost skoka:"
+msgctxt "Size in pixels of the line drawing the spectra"
+msgid "Line Width:"
+msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:507
+#. i18n: file: qtplugins/spectra/spectradialog.ui:510
 #. i18n: ectx: property (text), widget (QTableWidget, dataTable)
 msgid "x"
 msgstr "x"
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:512
+#. i18n: file: qtplugins/spectra/spectradialog.ui:515
 #. i18n: ectx: property (text), widget (QTableWidget, dataTable)
 msgid "y"
 msgstr "y"
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:526
+#. i18n: file: qtplugins/spectra/spectradialog.ui:529
 #. i18n: ectx: property (text), widget (QPushButton, push_options)
 msgid "&Options…"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:568
+#. i18n: file: qtplugins/spectra/spectradialog.ui:571
 #. i18n: ectx: property (toolTip), widget (Avogadro::VTK::ChartWidget, plot)
 msgid ""
 "Controls:\n"
@@ -8598,6 +8602,11 @@ msgstr ""
 ",,,mateju@svn.gnome.org,,,,mateju@svn.gnome.org,,,,mateju@svn.gnome.org,,,,"
 "mateju@svn.gnome.org"
 
+#, fuzzy
+#~| msgid "Jump Size:"
+#~ msgid "Line Size:"
+#~ msgstr "Velikost skoka:"
+
 #, fuzzy
 #~| msgid "Optimization"
 #~ msgid "Optimize"
diff --git a/i18n/sq.po b/i18n/sq.po
index 50def18a09..1715867a83 100644
--- a/i18n/sq.po
+++ b/i18n/sq.po
@@ -7,7 +7,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: avogadro\n"
 "Report-Msgid-Bugs-To: avogadro-devel@lists.sourceforge.net\n"
-"POT-Creation-Date: 2024-03-07 04:05+0000\n"
+"POT-Creation-Date: 2024-06-30 02:14+0000\n"
 "PO-Revision-Date: 2021-06-16 17:34+0000\n"
 "Last-Translator: Dillon Schultz <dillonschultz93@gmail.com>\n"
 "Language-Team: Albanian <https://hosted.weblate.org/projects/avogadro/"
@@ -2843,7 +2843,7 @@ msgid "Render the force field visualizations for the atoms of the molecule."
 msgstr ""
 
 #: qtplugins/forcefield/forcefield.cpp:88
-#: qtplugins/forcefield/forcefield.cpp:333 qtplugins/openbabel/openbabel.cpp:47
+#: qtplugins/forcefield/forcefield.cpp:339 qtplugins/openbabel/openbabel.cpp:47
 #: qtplugins/openbabel/openbabel.cpp:559
 msgid "Optimize Geometry"
 msgstr ""
@@ -2870,13 +2870,9 @@ msgstr "Animacioni"
 msgid "&Calculate"
 msgstr ""
 
-#: qtplugins/forcefield/forcefield.cpp:368
-#, qt-format
-msgid "%1 Energy = %L2"
-msgstr ""
-
-#: qtplugins/forcefield/forcefield.cpp:369
-#: qtplugins/forcefield/forcefield.cpp:415
+#: qtplugins/forcefield/forcefield.cpp:245
+#: qtplugins/forcefield/forcefield.cpp:375
+#: qtplugins/forcefield/forcefield.cpp:421
 #: qtplugins/playertool/playertool.cpp:347
 #: qtplugins/playertool/playertool.cpp:379 qtplugins/surfaces/surfaces.cpp:912
 #: qtplugins/surfaces/surfaces.cpp:956 qtplugins/surfaces/surfaces.cpp:968
@@ -2884,7 +2880,16 @@ msgstr ""
 msgid "Avogadro"
 msgstr "Avogadro"
 
-#: qtplugins/forcefield/forcefield.cpp:414
+#: qtplugins/forcefield/forcefield.cpp:246
+msgid "No atoms provided for optimization"
+msgstr ""
+
+#: qtplugins/forcefield/forcefield.cpp:374
+#, qt-format
+msgid "%1 Energy = %L2"
+msgstr ""
+
+#: qtplugins/forcefield/forcefield.cpp:420
 #, qt-format
 msgid "%1 Force Norm = %L2"
 msgstr ""
@@ -7449,27 +7454,28 @@ msgstr ""
 msgid "18"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:434
+#. i18n: file: qtplugins/spectra/spectradialog.ui:437
 #. i18n: ectx: property (text), widget (QLabel, label_5)
-msgid "Line Size:"
+msgctxt "Size in pixels of the line drawing the spectra"
+msgid "Line Width:"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:507
+#. i18n: file: qtplugins/spectra/spectradialog.ui:510
 #. i18n: ectx: property (text), widget (QTableWidget, dataTable)
 msgid "x"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:512
+#. i18n: file: qtplugins/spectra/spectradialog.ui:515
 #. i18n: ectx: property (text), widget (QTableWidget, dataTable)
 msgid "y"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:526
+#. i18n: file: qtplugins/spectra/spectradialog.ui:529
 #. i18n: ectx: property (text), widget (QPushButton, push_options)
 msgid "&Options…"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:568
+#. i18n: file: qtplugins/spectra/spectradialog.ui:571
 #. i18n: ectx: property (toolTip), widget (Avogadro::VTK::ChartWidget, plot)
 msgid ""
 "Controls:\n"
diff --git a/i18n/sr.po b/i18n/sr.po
index b3aa51e57d..b0126e1d50 100644
--- a/i18n/sr.po
+++ b/i18n/sr.po
@@ -9,7 +9,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: avogadro\n"
 "Report-Msgid-Bugs-To: avogadro-devel@lists.sourceforge.net\n"
-"POT-Creation-Date: 2024-03-07 04:05+0000\n"
+"POT-Creation-Date: 2024-06-30 02:14+0000\n"
 "PO-Revision-Date: 2021-08-20 01:04+0000\n"
 "Last-Translator: Nikola Matić <nikolamatic225@gmail.com>\n"
 "Language-Team: Serbian <https://hosted.weblate.org/projects/avogadro/"
@@ -3106,7 +3106,7 @@ msgid "Render the force field visualizations for the atoms of the molecule."
 msgstr "Omogućite vizuelizaciju polja sila za atome molekula."
 
 #: qtplugins/forcefield/forcefield.cpp:88
-#: qtplugins/forcefield/forcefield.cpp:333 qtplugins/openbabel/openbabel.cpp:47
+#: qtplugins/forcefield/forcefield.cpp:339 qtplugins/openbabel/openbabel.cpp:47
 #: qtplugins/openbabel/openbabel.cpp:559
 msgid "Optimize Geometry"
 msgstr "&Prilagodi Geometriju"
@@ -3139,14 +3139,9 @@ msgstr "Поправи изабране атоме"
 msgid "&Calculate"
 msgstr "Izračunaj"
 
-#: qtplugins/forcefield/forcefield.cpp:368
-#, fuzzy, qt-format
-#| msgid "Energy = %L1 %2"
-msgid "%1 Energy = %L2"
-msgstr "Енергија = %L1 %2"
-
-#: qtplugins/forcefield/forcefield.cpp:369
-#: qtplugins/forcefield/forcefield.cpp:415
+#: qtplugins/forcefield/forcefield.cpp:245
+#: qtplugins/forcefield/forcefield.cpp:375
+#: qtplugins/forcefield/forcefield.cpp:421
 #: qtplugins/playertool/playertool.cpp:347
 #: qtplugins/playertool/playertool.cpp:379 qtplugins/surfaces/surfaces.cpp:912
 #: qtplugins/surfaces/surfaces.cpp:956 qtplugins/surfaces/surfaces.cpp:968
@@ -3154,7 +3149,17 @@ msgstr "Енергија = %L1 %2"
 msgid "Avogadro"
 msgstr "Avogadro"
 
-#: qtplugins/forcefield/forcefield.cpp:414
+#: qtplugins/forcefield/forcefield.cpp:246
+msgid "No atoms provided for optimization"
+msgstr ""
+
+#: qtplugins/forcefield/forcefield.cpp:374
+#, fuzzy, qt-format
+#| msgid "Energy = %L1 %2"
+msgid "%1 Energy = %L2"
+msgstr "Енергија = %L1 %2"
+
+#: qtplugins/forcefield/forcefield.cpp:420
 #, qt-format
 msgid "%1 Force Norm = %L2"
 msgstr ""
@@ -8219,30 +8224,30 @@ msgstr ""
 msgid "18"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:434
+#. i18n: file: qtplugins/spectra/spectradialog.ui:437
 #. i18n: ectx: property (text), widget (QLabel, label_5)
-#, fuzzy
-msgid "Line Size:"
-msgstr "Širina vrha:"
+msgctxt "Size in pixels of the line drawing the spectra"
+msgid "Line Width:"
+msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:507
+#. i18n: file: qtplugins/spectra/spectradialog.ui:510
 #. i18n: ectx: property (text), widget (QTableWidget, dataTable)
 msgid "x"
 msgstr "x"
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:512
+#. i18n: file: qtplugins/spectra/spectradialog.ui:515
 #. i18n: ectx: property (text), widget (QTableWidget, dataTable)
 msgid "y"
 msgstr "y"
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:526
+#. i18n: file: qtplugins/spectra/spectradialog.ui:529
 #. i18n: ectx: property (text), widget (QPushButton, push_options)
 #, fuzzy
 #| msgid "Operations"
 msgid "&Options…"
 msgstr "Operacije"
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:568
+#. i18n: file: qtplugins/spectra/spectradialog.ui:571
 #. i18n: ectx: property (toolTip), widget (Avogadro::VTK::ChartWidget, plot)
 msgid ""
 "Controls:\n"
@@ -8908,6 +8913,10 @@ msgstr ""
 "\"miroslavnikolic@rocketmail.com\",\"ivanstar61@gmail.com\","
 "\"nikolamatic225@gmail.com\""
 
+#, fuzzy
+#~ msgid "Line Size:"
+#~ msgstr "Širina vrha:"
+
 #, fuzzy
 #~| msgid "Optimization"
 #~ msgid "Optimize"
diff --git a/i18n/sv.po b/i18n/sv.po
index 87c3063419..01afaa8d42 100644
--- a/i18n/sv.po
+++ b/i18n/sv.po
@@ -7,7 +7,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: avogadro\n"
 "Report-Msgid-Bugs-To: avogadro-devel@lists.sourceforge.net\n"
-"POT-Creation-Date: 2024-03-07 04:05+0000\n"
+"POT-Creation-Date: 2024-06-30 02:14+0000\n"
 "PO-Revision-Date: 2016-06-10 06:44+0000\n"
 "Last-Translator: Dostojevskji <darkangel_nr1@hotmail.com>\n"
 "Language-Team: Swedish <sv@li.org>\n"
@@ -2867,7 +2867,7 @@ msgid "Render the force field visualizations for the atoms of the molecule."
 msgstr ""
 
 #: qtplugins/forcefield/forcefield.cpp:88
-#: qtplugins/forcefield/forcefield.cpp:333 qtplugins/openbabel/openbabel.cpp:47
+#: qtplugins/forcefield/forcefield.cpp:339 qtplugins/openbabel/openbabel.cpp:47
 #: qtplugins/openbabel/openbabel.cpp:559
 #, fuzzy
 msgid "Optimize Geometry"
@@ -2896,13 +2896,9 @@ msgstr "Animering..."
 msgid "&Calculate"
 msgstr ""
 
-#: qtplugins/forcefield/forcefield.cpp:368
-#, qt-format
-msgid "%1 Energy = %L2"
-msgstr ""
-
-#: qtplugins/forcefield/forcefield.cpp:369
-#: qtplugins/forcefield/forcefield.cpp:415
+#: qtplugins/forcefield/forcefield.cpp:245
+#: qtplugins/forcefield/forcefield.cpp:375
+#: qtplugins/forcefield/forcefield.cpp:421
 #: qtplugins/playertool/playertool.cpp:347
 #: qtplugins/playertool/playertool.cpp:379 qtplugins/surfaces/surfaces.cpp:912
 #: qtplugins/surfaces/surfaces.cpp:956 qtplugins/surfaces/surfaces.cpp:968
@@ -2910,7 +2906,16 @@ msgstr ""
 msgid "Avogadro"
 msgstr ""
 
-#: qtplugins/forcefield/forcefield.cpp:414
+#: qtplugins/forcefield/forcefield.cpp:246
+msgid "No atoms provided for optimization"
+msgstr ""
+
+#: qtplugins/forcefield/forcefield.cpp:374
+#, qt-format
+msgid "%1 Energy = %L2"
+msgstr ""
+
+#: qtplugins/forcefield/forcefield.cpp:420
 #, qt-format
 msgid "%1 Force Norm = %L2"
 msgstr ""
@@ -7573,27 +7578,28 @@ msgstr ""
 msgid "18"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:434
+#. i18n: file: qtplugins/spectra/spectradialog.ui:437
 #. i18n: ectx: property (text), widget (QLabel, label_5)
-msgid "Line Size:"
+msgctxt "Size in pixels of the line drawing the spectra"
+msgid "Line Width:"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:507
+#. i18n: file: qtplugins/spectra/spectradialog.ui:510
 #. i18n: ectx: property (text), widget (QTableWidget, dataTable)
 msgid "x"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:512
+#. i18n: file: qtplugins/spectra/spectradialog.ui:515
 #. i18n: ectx: property (text), widget (QTableWidget, dataTable)
 msgid "y"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:526
+#. i18n: file: qtplugins/spectra/spectradialog.ui:529
 #. i18n: ectx: property (text), widget (QPushButton, push_options)
 msgid "&Options…"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:568
+#. i18n: file: qtplugins/spectra/spectradialog.ui:571
 #. i18n: ectx: property (toolTip), widget (Avogadro::VTK::ChartWidget, plot)
 msgid ""
 "Controls:\n"
diff --git a/i18n/ta.po b/i18n/ta.po
index 5532ad59e6..42ab90034c 100644
--- a/i18n/ta.po
+++ b/i18n/ta.po
@@ -7,7 +7,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: Avogadro 1.90.0\n"
 "Report-Msgid-Bugs-To: avogadro-devel@lists.sourceforge.net\n"
-"POT-Creation-Date: 2024-03-07 04:05+0000\n"
+"POT-Creation-Date: 2024-06-30 02:14+0000\n"
 "PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
 "Last-Translator: Automatically generated\n"
 "Language-Team: none\n"
@@ -2827,7 +2827,7 @@ msgid "Render the force field visualizations for the atoms of the molecule."
 msgstr ""
 
 #: qtplugins/forcefield/forcefield.cpp:88
-#: qtplugins/forcefield/forcefield.cpp:333 qtplugins/openbabel/openbabel.cpp:47
+#: qtplugins/forcefield/forcefield.cpp:339 qtplugins/openbabel/openbabel.cpp:47
 #: qtplugins/openbabel/openbabel.cpp:559
 msgid "Optimize Geometry"
 msgstr ""
@@ -2852,13 +2852,9 @@ msgstr ""
 msgid "&Calculate"
 msgstr ""
 
-#: qtplugins/forcefield/forcefield.cpp:368
-#, qt-format
-msgid "%1 Energy = %L2"
-msgstr ""
-
-#: qtplugins/forcefield/forcefield.cpp:369
-#: qtplugins/forcefield/forcefield.cpp:415
+#: qtplugins/forcefield/forcefield.cpp:245
+#: qtplugins/forcefield/forcefield.cpp:375
+#: qtplugins/forcefield/forcefield.cpp:421
 #: qtplugins/playertool/playertool.cpp:347
 #: qtplugins/playertool/playertool.cpp:379 qtplugins/surfaces/surfaces.cpp:912
 #: qtplugins/surfaces/surfaces.cpp:956 qtplugins/surfaces/surfaces.cpp:968
@@ -2866,7 +2862,16 @@ msgstr ""
 msgid "Avogadro"
 msgstr ""
 
-#: qtplugins/forcefield/forcefield.cpp:414
+#: qtplugins/forcefield/forcefield.cpp:246
+msgid "No atoms provided for optimization"
+msgstr ""
+
+#: qtplugins/forcefield/forcefield.cpp:374
+#, qt-format
+msgid "%1 Energy = %L2"
+msgstr ""
+
+#: qtplugins/forcefield/forcefield.cpp:420
 #, qt-format
 msgid "%1 Force Norm = %L2"
 msgstr ""
@@ -7407,27 +7412,28 @@ msgstr ""
 msgid "18"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:434
+#. i18n: file: qtplugins/spectra/spectradialog.ui:437
 #. i18n: ectx: property (text), widget (QLabel, label_5)
-msgid "Line Size:"
+msgctxt "Size in pixels of the line drawing the spectra"
+msgid "Line Width:"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:507
+#. i18n: file: qtplugins/spectra/spectradialog.ui:510
 #. i18n: ectx: property (text), widget (QTableWidget, dataTable)
 msgid "x"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:512
+#. i18n: file: qtplugins/spectra/spectradialog.ui:515
 #. i18n: ectx: property (text), widget (QTableWidget, dataTable)
 msgid "y"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:526
+#. i18n: file: qtplugins/spectra/spectradialog.ui:529
 #. i18n: ectx: property (text), widget (QPushButton, push_options)
 msgid "&Options…"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:568
+#. i18n: file: qtplugins/spectra/spectradialog.ui:571
 #. i18n: ectx: property (toolTip), widget (Avogadro::VTK::ChartWidget, plot)
 msgid ""
 "Controls:\n"
diff --git a/i18n/te.po b/i18n/te.po
index 7a1d861cd4..48015b94fd 100644
--- a/i18n/te.po
+++ b/i18n/te.po
@@ -6,7 +6,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: Avogadro 1.90.0\n"
 "Report-Msgid-Bugs-To: avogadro-devel@lists.sourceforge.net\n"
-"POT-Creation-Date: 2024-03-07 04:05+0000\n"
+"POT-Creation-Date: 2024-06-30 02:14+0000\n"
 "PO-Revision-Date: 2023-10-11 16:27+0000\n"
 "Last-Translator: Balavamsi Krishna <balavamsikrishna38@gmail.com>\n"
 "Language-Team: Telugu <https://hosted.weblate.org/projects/avogadro/"
@@ -2833,7 +2833,7 @@ msgid "Render the force field visualizations for the atoms of the molecule."
 msgstr ""
 
 #: qtplugins/forcefield/forcefield.cpp:88
-#: qtplugins/forcefield/forcefield.cpp:333 qtplugins/openbabel/openbabel.cpp:47
+#: qtplugins/forcefield/forcefield.cpp:339 qtplugins/openbabel/openbabel.cpp:47
 #: qtplugins/openbabel/openbabel.cpp:559
 msgid "Optimize Geometry"
 msgstr ""
@@ -2858,13 +2858,9 @@ msgstr ""
 msgid "&Calculate"
 msgstr ""
 
-#: qtplugins/forcefield/forcefield.cpp:368
-#, qt-format
-msgid "%1 Energy = %L2"
-msgstr ""
-
-#: qtplugins/forcefield/forcefield.cpp:369
-#: qtplugins/forcefield/forcefield.cpp:415
+#: qtplugins/forcefield/forcefield.cpp:245
+#: qtplugins/forcefield/forcefield.cpp:375
+#: qtplugins/forcefield/forcefield.cpp:421
 #: qtplugins/playertool/playertool.cpp:347
 #: qtplugins/playertool/playertool.cpp:379 qtplugins/surfaces/surfaces.cpp:912
 #: qtplugins/surfaces/surfaces.cpp:956 qtplugins/surfaces/surfaces.cpp:968
@@ -2872,7 +2868,16 @@ msgstr ""
 msgid "Avogadro"
 msgstr ""
 
-#: qtplugins/forcefield/forcefield.cpp:414
+#: qtplugins/forcefield/forcefield.cpp:246
+msgid "No atoms provided for optimization"
+msgstr ""
+
+#: qtplugins/forcefield/forcefield.cpp:374
+#, qt-format
+msgid "%1 Energy = %L2"
+msgstr ""
+
+#: qtplugins/forcefield/forcefield.cpp:420
 #, qt-format
 msgid "%1 Force Norm = %L2"
 msgstr ""
@@ -7417,27 +7422,28 @@ msgstr ""
 msgid "18"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:434
+#. i18n: file: qtplugins/spectra/spectradialog.ui:437
 #. i18n: ectx: property (text), widget (QLabel, label_5)
-msgid "Line Size:"
+msgctxt "Size in pixels of the line drawing the spectra"
+msgid "Line Width:"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:507
+#. i18n: file: qtplugins/spectra/spectradialog.ui:510
 #. i18n: ectx: property (text), widget (QTableWidget, dataTable)
 msgid "x"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:512
+#. i18n: file: qtplugins/spectra/spectradialog.ui:515
 #. i18n: ectx: property (text), widget (QTableWidget, dataTable)
 msgid "y"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:526
+#. i18n: file: qtplugins/spectra/spectradialog.ui:529
 #. i18n: ectx: property (text), widget (QPushButton, push_options)
 msgid "&Options…"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:568
+#. i18n: file: qtplugins/spectra/spectradialog.ui:571
 #. i18n: ectx: property (toolTip), widget (Avogadro::VTK::ChartWidget, plot)
 msgid ""
 "Controls:\n"
diff --git a/i18n/th.po b/i18n/th.po
index 77b3814da9..8923e8a622 100644
--- a/i18n/th.po
+++ b/i18n/th.po
@@ -7,7 +7,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: avogadro\n"
 "Report-Msgid-Bugs-To: avogadro-devel@lists.sourceforge.net\n"
-"POT-Creation-Date: 2024-03-07 04:05+0000\n"
+"POT-Creation-Date: 2024-06-30 02:14+0000\n"
 "PO-Revision-Date: 2016-06-10 06:42+0000\n"
 "Last-Translator: Rockworld <sumoisrock@gmail.com>\n"
 "Language-Team: Thai <th@li.org>\n"
@@ -2829,7 +2829,7 @@ msgid "Render the force field visualizations for the atoms of the molecule."
 msgstr ""
 
 #: qtplugins/forcefield/forcefield.cpp:88
-#: qtplugins/forcefield/forcefield.cpp:333 qtplugins/openbabel/openbabel.cpp:47
+#: qtplugins/forcefield/forcefield.cpp:339 qtplugins/openbabel/openbabel.cpp:47
 #: qtplugins/openbabel/openbabel.cpp:559
 msgid "Optimize Geometry"
 msgstr ""
@@ -2854,13 +2854,9 @@ msgstr ""
 msgid "&Calculate"
 msgstr ""
 
-#: qtplugins/forcefield/forcefield.cpp:368
-#, qt-format
-msgid "%1 Energy = %L2"
-msgstr ""
-
-#: qtplugins/forcefield/forcefield.cpp:369
-#: qtplugins/forcefield/forcefield.cpp:415
+#: qtplugins/forcefield/forcefield.cpp:245
+#: qtplugins/forcefield/forcefield.cpp:375
+#: qtplugins/forcefield/forcefield.cpp:421
 #: qtplugins/playertool/playertool.cpp:347
 #: qtplugins/playertool/playertool.cpp:379 qtplugins/surfaces/surfaces.cpp:912
 #: qtplugins/surfaces/surfaces.cpp:956 qtplugins/surfaces/surfaces.cpp:968
@@ -2868,7 +2864,16 @@ msgstr ""
 msgid "Avogadro"
 msgstr ""
 
-#: qtplugins/forcefield/forcefield.cpp:414
+#: qtplugins/forcefield/forcefield.cpp:246
+msgid "No atoms provided for optimization"
+msgstr ""
+
+#: qtplugins/forcefield/forcefield.cpp:374
+#, qt-format
+msgid "%1 Energy = %L2"
+msgstr ""
+
+#: qtplugins/forcefield/forcefield.cpp:420
 #, qt-format
 msgid "%1 Force Norm = %L2"
 msgstr ""
@@ -7409,27 +7414,28 @@ msgstr ""
 msgid "18"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:434
+#. i18n: file: qtplugins/spectra/spectradialog.ui:437
 #. i18n: ectx: property (text), widget (QLabel, label_5)
-msgid "Line Size:"
+msgctxt "Size in pixels of the line drawing the spectra"
+msgid "Line Width:"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:507
+#. i18n: file: qtplugins/spectra/spectradialog.ui:510
 #. i18n: ectx: property (text), widget (QTableWidget, dataTable)
 msgid "x"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:512
+#. i18n: file: qtplugins/spectra/spectradialog.ui:515
 #. i18n: ectx: property (text), widget (QTableWidget, dataTable)
 msgid "y"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:526
+#. i18n: file: qtplugins/spectra/spectradialog.ui:529
 #. i18n: ectx: property (text), widget (QPushButton, push_options)
 msgid "&Options…"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:568
+#. i18n: file: qtplugins/spectra/spectradialog.ui:571
 #. i18n: ectx: property (toolTip), widget (Avogadro::VTK::ChartWidget, plot)
 msgid ""
 "Controls:\n"
diff --git a/i18n/tr.po b/i18n/tr.po
index 331cb640aa..dc36963fbf 100644
--- a/i18n/tr.po
+++ b/i18n/tr.po
@@ -15,7 +15,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: avogadro\n"
 "Report-Msgid-Bugs-To: avogadro-devel@lists.sourceforge.net\n"
-"POT-Creation-Date: 2024-03-07 04:05+0000\n"
+"POT-Creation-Date: 2024-06-30 02:14+0000\n"
 "PO-Revision-Date: 2024-01-31 21:08+0000\n"
 "Last-Translator: Emir <bitigchi@me.com>\n"
 "Language-Team: Turkish <https://hosted.weblate.org/projects/avogadro/"
@@ -3001,7 +3001,7 @@ msgid "Render the force field visualizations for the atoms of the molecule."
 msgstr "Molekülün atomları için kuvvet alanı görselleştirmelerini işle."
 
 #: qtplugins/forcefield/forcefield.cpp:88
-#: qtplugins/forcefield/forcefield.cpp:333 qtplugins/openbabel/openbabel.cpp:47
+#: qtplugins/forcefield/forcefield.cpp:339 qtplugins/openbabel/openbabel.cpp:47
 #: qtplugins/openbabel/openbabel.cpp:559
 msgid "Optimize Geometry"
 msgstr "Geometriyi İyileştir"
@@ -3034,14 +3034,9 @@ msgstr "Seçilen Atomları Düzelt"
 msgid "&Calculate"
 msgstr "Enerjiyi Hesapla"
 
-#: qtplugins/forcefield/forcefield.cpp:368
-#, fuzzy, qt-format
-#| msgid "Energy = %L1 %2"
-msgid "%1 Energy = %L2"
-msgstr "Enerji = %L1 %2"
-
-#: qtplugins/forcefield/forcefield.cpp:369
-#: qtplugins/forcefield/forcefield.cpp:415
+#: qtplugins/forcefield/forcefield.cpp:245
+#: qtplugins/forcefield/forcefield.cpp:375
+#: qtplugins/forcefield/forcefield.cpp:421
 #: qtplugins/playertool/playertool.cpp:347
 #: qtplugins/playertool/playertool.cpp:379 qtplugins/surfaces/surfaces.cpp:912
 #: qtplugins/surfaces/surfaces.cpp:956 qtplugins/surfaces/surfaces.cpp:968
@@ -3049,7 +3044,17 @@ msgstr "Enerji = %L1 %2"
 msgid "Avogadro"
 msgstr "Avogadro"
 
-#: qtplugins/forcefield/forcefield.cpp:414
+#: qtplugins/forcefield/forcefield.cpp:246
+msgid "No atoms provided for optimization"
+msgstr ""
+
+#: qtplugins/forcefield/forcefield.cpp:374
+#, fuzzy, qt-format
+#| msgid "Energy = %L1 %2"
+msgid "%1 Energy = %L2"
+msgstr "Enerji = %L1 %2"
+
+#: qtplugins/forcefield/forcefield.cpp:420
 #, qt-format
 msgid "%1 Force Norm = %L2"
 msgstr ""
@@ -7826,27 +7831,28 @@ msgstr ""
 msgid "18"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:434
+#. i18n: file: qtplugins/spectra/spectradialog.ui:437
 #. i18n: ectx: property (text), widget (QLabel, label_5)
-msgid "Line Size:"
+msgctxt "Size in pixels of the line drawing the spectra"
+msgid "Line Width:"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:507
+#. i18n: file: qtplugins/spectra/spectradialog.ui:510
 #. i18n: ectx: property (text), widget (QTableWidget, dataTable)
 msgid "x"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:512
+#. i18n: file: qtplugins/spectra/spectradialog.ui:515
 #. i18n: ectx: property (text), widget (QTableWidget, dataTable)
 msgid "y"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:526
+#. i18n: file: qtplugins/spectra/spectradialog.ui:529
 #. i18n: ectx: property (text), widget (QPushButton, push_options)
 msgid "&Options…"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:568
+#. i18n: file: qtplugins/spectra/spectradialog.ui:571
 #. i18n: ectx: property (toolTip), widget (Avogadro::VTK::ChartWidget, plot)
 msgid ""
 "Controls:\n"
diff --git a/i18n/ug.po b/i18n/ug.po
index fb2a4e891e..1db3d94dc0 100644
--- a/i18n/ug.po
+++ b/i18n/ug.po
@@ -7,7 +7,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: avogadro\n"
 "Report-Msgid-Bugs-To: avogadro-devel@lists.sourceforge.net\n"
-"POT-Creation-Date: 2024-03-07 04:05+0000\n"
+"POT-Creation-Date: 2024-06-30 02:14+0000\n"
 "PO-Revision-Date: 2021-10-14 18:33+0000\n"
 "Last-Translator: ejatjon amar <3395087980@qq.com>\n"
 "Language-Team: Uyghur <https://hosted.weblate.org/projects/avogadro/"
@@ -2879,7 +2879,7 @@ msgid "Render the force field visualizations for the atoms of the molecule."
 msgstr ""
 
 #: qtplugins/forcefield/forcefield.cpp:88
-#: qtplugins/forcefield/forcefield.cpp:333 qtplugins/openbabel/openbabel.cpp:47
+#: qtplugins/forcefield/forcefield.cpp:339 qtplugins/openbabel/openbabel.cpp:47
 #: qtplugins/openbabel/openbabel.cpp:559
 msgid "Optimize Geometry"
 msgstr ""
@@ -2908,13 +2908,9 @@ msgstr "تاللا(&S)"
 msgid "&Calculate"
 msgstr "ھېسابلا"
 
-#: qtplugins/forcefield/forcefield.cpp:368
-#, qt-format
-msgid "%1 Energy = %L2"
-msgstr ""
-
-#: qtplugins/forcefield/forcefield.cpp:369
-#: qtplugins/forcefield/forcefield.cpp:415
+#: qtplugins/forcefield/forcefield.cpp:245
+#: qtplugins/forcefield/forcefield.cpp:375
+#: qtplugins/forcefield/forcefield.cpp:421
 #: qtplugins/playertool/playertool.cpp:347
 #: qtplugins/playertool/playertool.cpp:379 qtplugins/surfaces/surfaces.cpp:912
 #: qtplugins/surfaces/surfaces.cpp:956 qtplugins/surfaces/surfaces.cpp:968
@@ -2922,7 +2918,16 @@ msgstr ""
 msgid "Avogadro"
 msgstr ""
 
-#: qtplugins/forcefield/forcefield.cpp:414
+#: qtplugins/forcefield/forcefield.cpp:246
+msgid "No atoms provided for optimization"
+msgstr ""
+
+#: qtplugins/forcefield/forcefield.cpp:374
+#, qt-format
+msgid "%1 Energy = %L2"
+msgstr ""
+
+#: qtplugins/forcefield/forcefield.cpp:420
 #, qt-format
 msgid "%1 Force Norm = %L2"
 msgstr ""
@@ -7605,27 +7610,28 @@ msgstr ""
 msgid "18"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:434
+#. i18n: file: qtplugins/spectra/spectradialog.ui:437
 #. i18n: ectx: property (text), widget (QLabel, label_5)
-msgid "Line Size:"
+msgctxt "Size in pixels of the line drawing the spectra"
+msgid "Line Width:"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:507
+#. i18n: file: qtplugins/spectra/spectradialog.ui:510
 #. i18n: ectx: property (text), widget (QTableWidget, dataTable)
 msgid "x"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:512
+#. i18n: file: qtplugins/spectra/spectradialog.ui:515
 #. i18n: ectx: property (text), widget (QTableWidget, dataTable)
 msgid "y"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:526
+#. i18n: file: qtplugins/spectra/spectradialog.ui:529
 #. i18n: ectx: property (text), widget (QPushButton, push_options)
 msgid "&Options…"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:568
+#. i18n: file: qtplugins/spectra/spectradialog.ui:571
 #. i18n: ectx: property (toolTip), widget (Avogadro::VTK::ChartWidget, plot)
 msgid ""
 "Controls:\n"
diff --git a/i18n/uk.po b/i18n/uk.po
index aad6e0c385..c134bb5c83 100644
--- a/i18n/uk.po
+++ b/i18n/uk.po
@@ -10,7 +10,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: avogadro\n"
 "Report-Msgid-Bugs-To: avogadro-devel@lists.sourceforge.net\n"
-"POT-Creation-Date: 2024-03-07 04:05+0000\n"
+"POT-Creation-Date: 2024-06-30 02:14+0000\n"
 "PO-Revision-Date: 2022-07-05 23:51+0000\n"
 "Last-Translator: Artem <artem@molotov.work>\n"
 "Language-Team: Ukrainian <https://hosted.weblate.org/projects/avogadro/"
@@ -3012,7 +3012,7 @@ msgid "Render the force field visualizations for the atoms of the molecule."
 msgstr ""
 
 #: qtplugins/forcefield/forcefield.cpp:88
-#: qtplugins/forcefield/forcefield.cpp:333 qtplugins/openbabel/openbabel.cpp:47
+#: qtplugins/forcefield/forcefield.cpp:339 qtplugins/openbabel/openbabel.cpp:47
 #: qtplugins/openbabel/openbabel.cpp:559
 #, fuzzy
 msgid "Optimize Geometry"
@@ -3045,14 +3045,9 @@ msgstr "Зафіксувати позначені атоми"
 msgid "&Calculate"
 msgstr "Обчислити"
 
-#: qtplugins/forcefield/forcefield.cpp:368
-#, fuzzy, qt-format
-#| msgid "Energy = %L1 %2"
-msgid "%1 Energy = %L2"
-msgstr "Енергія = %L1 %2"
-
-#: qtplugins/forcefield/forcefield.cpp:369
-#: qtplugins/forcefield/forcefield.cpp:415
+#: qtplugins/forcefield/forcefield.cpp:245
+#: qtplugins/forcefield/forcefield.cpp:375
+#: qtplugins/forcefield/forcefield.cpp:421
 #: qtplugins/playertool/playertool.cpp:347
 #: qtplugins/playertool/playertool.cpp:379 qtplugins/surfaces/surfaces.cpp:912
 #: qtplugins/surfaces/surfaces.cpp:956 qtplugins/surfaces/surfaces.cpp:968
@@ -3060,7 +3055,17 @@ msgstr "Енергія = %L1 %2"
 msgid "Avogadro"
 msgstr "Avogadro"
 
-#: qtplugins/forcefield/forcefield.cpp:414
+#: qtplugins/forcefield/forcefield.cpp:246
+msgid "No atoms provided for optimization"
+msgstr ""
+
+#: qtplugins/forcefield/forcefield.cpp:374
+#, fuzzy, qt-format
+#| msgid "Energy = %L1 %2"
+msgid "%1 Energy = %L2"
+msgstr "Енергія = %L1 %2"
+
+#: qtplugins/forcefield/forcefield.cpp:420
 #, qt-format
 msgid "%1 Force Norm = %L2"
 msgstr ""
@@ -7996,29 +8001,28 @@ msgstr ""
 msgid "18"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:434
+#. i18n: file: qtplugins/spectra/spectradialog.ui:437
 #. i18n: ectx: property (text), widget (QLabel, label_5)
-#, fuzzy
-#| msgid "Jump Size:"
-msgid "Line Size:"
-msgstr "Розмір переходу:"
+msgctxt "Size in pixels of the line drawing the spectra"
+msgid "Line Width:"
+msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:507
+#. i18n: file: qtplugins/spectra/spectradialog.ui:510
 #. i18n: ectx: property (text), widget (QTableWidget, dataTable)
 msgid "x"
 msgstr "x"
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:512
+#. i18n: file: qtplugins/spectra/spectradialog.ui:515
 #. i18n: ectx: property (text), widget (QTableWidget, dataTable)
 msgid "y"
 msgstr "y"
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:526
+#. i18n: file: qtplugins/spectra/spectradialog.ui:529
 #. i18n: ectx: property (text), widget (QPushButton, push_options)
 msgid "&Options…"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:568
+#. i18n: file: qtplugins/spectra/spectradialog.ui:571
 #. i18n: ectx: property (toolTip), widget (Avogadro::VTK::ChartWidget, plot)
 msgid ""
 "Controls:\n"
@@ -8658,6 +8662,11 @@ msgstr ""
 "skrypnychuk@gmail.com,,,,yurchor@gmail.com,skrypnychuk@gmail.com,,,,,"
 "yurchor@gmail.com,skrypnychuk@gmail.com,"
 
+#, fuzzy
+#~| msgid "Jump Size:"
+#~ msgid "Line Size:"
+#~ msgstr "Розмір переходу:"
+
 #, fuzzy
 #~| msgid "Optimization"
 #~ msgid "Optimize"
diff --git a/i18n/vi.po b/i18n/vi.po
index c9c521e299..730416bffc 100644
--- a/i18n/vi.po
+++ b/i18n/vi.po
@@ -8,7 +8,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: avogadro\n"
 "Report-Msgid-Bugs-To: avogadro-devel@lists.sourceforge.net\n"
-"POT-Creation-Date: 2024-03-07 04:05+0000\n"
+"POT-Creation-Date: 2024-06-30 02:14+0000\n"
 "PO-Revision-Date: 2022-11-27 00:47+0000\n"
 "Last-Translator: Minh P <phandinhminh@protonmail.ch>\n"
 "Language-Team: Vietnamese <https://hosted.weblate.org/projects/avogadro/"
@@ -2939,7 +2939,7 @@ msgid "Render the force field visualizations for the atoms of the molecule."
 msgstr ""
 
 #: qtplugins/forcefield/forcefield.cpp:88
-#: qtplugins/forcefield/forcefield.cpp:333 qtplugins/openbabel/openbabel.cpp:47
+#: qtplugins/forcefield/forcefield.cpp:339 qtplugins/openbabel/openbabel.cpp:47
 #: qtplugins/openbabel/openbabel.cpp:559
 #, fuzzy
 msgid "Optimize Geometry"
@@ -2972,14 +2972,9 @@ msgstr "Cố định các nguyên tử được chọn"
 msgid "&Calculate"
 msgstr "Tính toán:"
 
-#: qtplugins/forcefield/forcefield.cpp:368
-#, fuzzy, qt-format
-#| msgid "Energy = %L1 %2"
-msgid "%1 Energy = %L2"
-msgstr "Năng lượng = %L1 %2"
-
-#: qtplugins/forcefield/forcefield.cpp:369
-#: qtplugins/forcefield/forcefield.cpp:415
+#: qtplugins/forcefield/forcefield.cpp:245
+#: qtplugins/forcefield/forcefield.cpp:375
+#: qtplugins/forcefield/forcefield.cpp:421
 #: qtplugins/playertool/playertool.cpp:347
 #: qtplugins/playertool/playertool.cpp:379 qtplugins/surfaces/surfaces.cpp:912
 #: qtplugins/surfaces/surfaces.cpp:956 qtplugins/surfaces/surfaces.cpp:968
@@ -2987,7 +2982,17 @@ msgstr "Năng lượng = %L1 %2"
 msgid "Avogadro"
 msgstr "Avogadro"
 
-#: qtplugins/forcefield/forcefield.cpp:414
+#: qtplugins/forcefield/forcefield.cpp:246
+msgid "No atoms provided for optimization"
+msgstr ""
+
+#: qtplugins/forcefield/forcefield.cpp:374
+#, fuzzy, qt-format
+#| msgid "Energy = %L1 %2"
+msgid "%1 Energy = %L2"
+msgstr "Năng lượng = %L1 %2"
+
+#: qtplugins/forcefield/forcefield.cpp:420
 #, qt-format
 msgid "%1 Force Norm = %L2"
 msgstr ""
@@ -7807,29 +7812,28 @@ msgstr ""
 msgid "18"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:434
+#. i18n: file: qtplugins/spectra/spectradialog.ui:437
 #. i18n: ectx: property (text), widget (QLabel, label_5)
-#, fuzzy
-#| msgid "Jump Size:"
-msgid "Line Size:"
-msgstr "Bước nhảy:"
+msgctxt "Size in pixels of the line drawing the spectra"
+msgid "Line Width:"
+msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:507
+#. i18n: file: qtplugins/spectra/spectradialog.ui:510
 #. i18n: ectx: property (text), widget (QTableWidget, dataTable)
 msgid "x"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:512
+#. i18n: file: qtplugins/spectra/spectradialog.ui:515
 #. i18n: ectx: property (text), widget (QTableWidget, dataTable)
 msgid "y"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:526
+#. i18n: file: qtplugins/spectra/spectradialog.ui:529
 #. i18n: ectx: property (text), widget (QPushButton, push_options)
 msgid "&Options…"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:568
+#. i18n: file: qtplugins/spectra/spectradialog.ui:571
 #. i18n: ectx: property (toolTip), widget (Avogadro::VTK::ChartWidget, plot)
 msgid ""
 "Controls:\n"
@@ -8425,6 +8429,11 @@ msgstr ""
 "sourceforge.net,,,,avogadro-devel@lists.sourceforge.net,,,,avogadro-"
 "devel@lists.sourceforge.net,,,,avogadro-devel@lists.sourceforge.net,"
 
+#, fuzzy
+#~| msgid "Jump Size:"
+#~ msgid "Line Size:"
+#~ msgstr "Bước nhảy:"
+
 #, fuzzy
 #~| msgid "Optimization"
 #~ msgid "Optimize"
diff --git a/i18n/zh_CN.po b/i18n/zh_CN.po
index 50ab15c099..fc4ed43299 100644
--- a/i18n/zh_CN.po
+++ b/i18n/zh_CN.po
@@ -18,7 +18,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: avogadro\n"
 "Report-Msgid-Bugs-To: avogadro-devel@lists.sourceforge.net\n"
-"POT-Creation-Date: 2024-03-07 04:05+0000\n"
+"POT-Creation-Date: 2024-06-30 02:14+0000\n"
 "PO-Revision-Date: 2024-05-31 22:21+0000\n"
 "Last-Translator: zhang tengshuo <zhangtengshuo@gmail.com>\n"
 "Language-Team: Chinese (Simplified) <https://hosted.weblate.org/projects/"
@@ -2947,7 +2947,7 @@ msgid "Render the force field visualizations for the atoms of the molecule."
 msgstr "为分子中的原子渲染力场可视化。"
 
 #: qtplugins/forcefield/forcefield.cpp:88
-#: qtplugins/forcefield/forcefield.cpp:333 qtplugins/openbabel/openbabel.cpp:47
+#: qtplugins/forcefield/forcefield.cpp:339 qtplugins/openbabel/openbabel.cpp:47
 #: qtplugins/openbabel/openbabel.cpp:559
 msgid "Optimize Geometry"
 msgstr "优化几何结构"
@@ -2972,13 +2972,9 @@ msgstr "释放所选择的原子"
 msgid "&Calculate"
 msgstr "计算(&C)"
 
-#: qtplugins/forcefield/forcefield.cpp:368
-#, qt-format
-msgid "%1 Energy = %L2"
-msgstr "%1 能量 = %L2"
-
-#: qtplugins/forcefield/forcefield.cpp:369
-#: qtplugins/forcefield/forcefield.cpp:415
+#: qtplugins/forcefield/forcefield.cpp:245
+#: qtplugins/forcefield/forcefield.cpp:375
+#: qtplugins/forcefield/forcefield.cpp:421
 #: qtplugins/playertool/playertool.cpp:347
 #: qtplugins/playertool/playertool.cpp:379 qtplugins/surfaces/surfaces.cpp:912
 #: qtplugins/surfaces/surfaces.cpp:956 qtplugins/surfaces/surfaces.cpp:968
@@ -2986,7 +2982,16 @@ msgstr "%1 能量 = %L2"
 msgid "Avogadro"
 msgstr "Avogadro"
 
-#: qtplugins/forcefield/forcefield.cpp:414
+#: qtplugins/forcefield/forcefield.cpp:246
+msgid "No atoms provided for optimization"
+msgstr ""
+
+#: qtplugins/forcefield/forcefield.cpp:374
+#, qt-format
+msgid "%1 Energy = %L2"
+msgstr "%1 能量 = %L2"
+
+#: qtplugins/forcefield/forcefield.cpp:420
 #, qt-format
 msgid "%1 Force Norm = %L2"
 msgstr "%1 力的范数 = %L2"
@@ -7780,29 +7785,28 @@ msgstr ""
 msgid "18"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:434
+#. i18n: file: qtplugins/spectra/spectradialog.ui:437
 #. i18n: ectx: property (text), widget (QLabel, label_5)
-#, fuzzy
-#| msgid "Jump Size:"
-msgid "Line Size:"
-msgstr "跳转尺度:"
+msgctxt "Size in pixels of the line drawing the spectra"
+msgid "Line Width:"
+msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:507
+#. i18n: file: qtplugins/spectra/spectradialog.ui:510
 #. i18n: ectx: property (text), widget (QTableWidget, dataTable)
 msgid "x"
 msgstr "x"
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:512
+#. i18n: file: qtplugins/spectra/spectradialog.ui:515
 #. i18n: ectx: property (text), widget (QTableWidget, dataTable)
 msgid "y"
 msgstr "y"
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:526
+#. i18n: file: qtplugins/spectra/spectradialog.ui:529
 #. i18n: ectx: property (text), widget (QPushButton, push_options)
 msgid "&Options…"
 msgstr "选项(&O)…"
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:568
+#. i18n: file: qtplugins/spectra/spectradialog.ui:571
 #. i18n: ectx: property (toolTip), widget (Avogadro::VTK::ChartWidget, plot)
 msgid ""
 "Controls:\n"
@@ -8395,11 +8399,16 @@ msgstr ""
 msgctxt "EMAIL OF TRANSLATORS"
 msgid "Your emails"
 msgstr ""
-"cuiweicui1985@gmail.com,rainofchaos@gmail.com,yjjart@gmail."
-"com,sihanzheng@gmail.com,weitao1979@gmail.com,wantinghard@gmail.com,avogadro-"
-"devel@lists.sourceforge.net,chensiqiong@126.com,frankensteinyang@gmail."
-"com,chaofeng111@gmail.com,allen19920930@gmail.com,skyxxzc@gmail."
-"com,sihanzheng@gmail.com,cyliang532@gmail.com,zhangtengshuo@gmail.com"
+"cuiweicui1985@gmail.com,rainofchaos@gmail.com,yjjart@gmail.com,"
+"sihanzheng@gmail.com,weitao1979@gmail.com,wantinghard@gmail.com,avogadro-"
+"devel@lists.sourceforge.net,chensiqiong@126.com,frankensteinyang@gmail.com,"
+"chaofeng111@gmail.com,allen19920930@gmail.com,skyxxzc@gmail.com,"
+"sihanzheng@gmail.com,cyliang532@gmail.com,zhangtengshuo@gmail.com"
+
+#, fuzzy
+#~| msgid "Jump Size:"
+#~ msgid "Line Size:"
+#~ msgstr "跳转尺度:"
 
 #, fuzzy
 #~| msgid "Optimization"
diff --git a/i18n/zh_TW.po b/i18n/zh_TW.po
index 4eb7000dcb..cd3feb1dc6 100644
--- a/i18n/zh_TW.po
+++ b/i18n/zh_TW.po
@@ -7,7 +7,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: avogadro\n"
 "Report-Msgid-Bugs-To: avogadro-devel@lists.sourceforge.net\n"
-"POT-Creation-Date: 2024-03-07 04:05+0000\n"
+"POT-Creation-Date: 2024-06-30 02:14+0000\n"
 "PO-Revision-Date: 2021-01-25 09:32+0000\n"
 "Last-Translator: crlambda <lm3c@protonmail.ch>\n"
 "Language-Team: Chinese (Traditional) <https://hosted.weblate.org/projects/"
@@ -2953,7 +2953,7 @@ msgid "Render the force field visualizations for the atoms of the molecule."
 msgstr ""
 
 #: qtplugins/forcefield/forcefield.cpp:88
-#: qtplugins/forcefield/forcefield.cpp:333 qtplugins/openbabel/openbabel.cpp:47
+#: qtplugins/forcefield/forcefield.cpp:339 qtplugins/openbabel/openbabel.cpp:47
 #: qtplugins/openbabel/openbabel.cpp:559
 #, fuzzy
 msgid "Optimize Geometry"
@@ -2986,14 +2986,9 @@ msgstr "固定所選的原子"
 msgid "&Calculate"
 msgstr "計算"
 
-#: qtplugins/forcefield/forcefield.cpp:368
-#, fuzzy, qt-format
-#| msgid "Energy = %L1 %2"
-msgid "%1 Energy = %L2"
-msgstr "能量 = %L1 %2"
-
-#: qtplugins/forcefield/forcefield.cpp:369
-#: qtplugins/forcefield/forcefield.cpp:415
+#: qtplugins/forcefield/forcefield.cpp:245
+#: qtplugins/forcefield/forcefield.cpp:375
+#: qtplugins/forcefield/forcefield.cpp:421
 #: qtplugins/playertool/playertool.cpp:347
 #: qtplugins/playertool/playertool.cpp:379 qtplugins/surfaces/surfaces.cpp:912
 #: qtplugins/surfaces/surfaces.cpp:956 qtplugins/surfaces/surfaces.cpp:968
@@ -3001,7 +2996,17 @@ msgstr "能量 = %L1 %2"
 msgid "Avogadro"
 msgstr "Avogadro 亞佛加厥"
 
-#: qtplugins/forcefield/forcefield.cpp:414
+#: qtplugins/forcefield/forcefield.cpp:246
+msgid "No atoms provided for optimization"
+msgstr ""
+
+#: qtplugins/forcefield/forcefield.cpp:374
+#, fuzzy, qt-format
+#| msgid "Energy = %L1 %2"
+msgid "%1 Energy = %L2"
+msgstr "能量 = %L1 %2"
+
+#: qtplugins/forcefield/forcefield.cpp:420
 #, qt-format
 msgid "%1 Force Norm = %L2"
 msgstr ""
@@ -7834,29 +7839,28 @@ msgstr ""
 msgid "18"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:434
+#. i18n: file: qtplugins/spectra/spectradialog.ui:437
 #. i18n: ectx: property (text), widget (QLabel, label_5)
-#, fuzzy
-#| msgid "Jump Size:"
-msgid "Line Size:"
-msgstr "Jump Size:"
+msgctxt "Size in pixels of the line drawing the spectra"
+msgid "Line Width:"
+msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:507
+#. i18n: file: qtplugins/spectra/spectradialog.ui:510
 #. i18n: ectx: property (text), widget (QTableWidget, dataTable)
 msgid "x"
 msgstr "x"
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:512
+#. i18n: file: qtplugins/spectra/spectradialog.ui:515
 #. i18n: ectx: property (text), widget (QTableWidget, dataTable)
 msgid "y"
 msgstr "y"
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:526
+#. i18n: file: qtplugins/spectra/spectradialog.ui:529
 #. i18n: ectx: property (text), widget (QPushButton, push_options)
 msgid "&Options…"
 msgstr ""
 
-#. i18n: file: qtplugins/spectra/spectradialog.ui:568
+#. i18n: file: qtplugins/spectra/spectradialog.ui:571
 #. i18n: ectx: property (toolTip), widget (Avogadro::VTK::ChartWidget, plot)
 msgid ""
 "Controls:\n"
@@ -8472,6 +8476,11 @@ msgstr ""
 "iychiang1809@gmail.com,,,iychiang1809@gmail.com,,,iychiang1809@gmail.com,,,"
 "iychiang1809@gmail.com,,,iychiang1809@gmail.com"
 
+#, fuzzy
+#~| msgid "Jump Size:"
+#~ msgid "Line Size:"
+#~ msgstr "Jump Size:"
+
 #, fuzzy
 #~| msgid "Optimization"
 #~ msgid "Optimize"