Consolidate redundant create_subscections, and update quickstart (#795)

* Consolidate redundant create_subscections, and update quickstart

* Add seealso links

* fix ref syntax

* Change reference from title to reference anchor

source/educators/how-tos/course_development/create_edit_publish_subsections.rst

@@ -6,6 +6,8 @@ Create a Subsection
 
 .. tags:: educator, how-to
 
+.. START CREATE A SUBSECTION
+
 To create a new subsection, follow these steps.
 
 #. In the outline, expand the section in which you want to create a new
@@ -18,6 +20,8 @@ To create a new subsection, follow these steps.
    analyze performance in reporting and analytics systems.
 #. :ref:`Add units<Create a Unit>` to the new subsection as needed.
 
+.. END CREATE A SUBSECTION
+
 It is recommended that you :ref:`test course content <Testing Your Course
 Content>` as you create new subsections.
 
@@ -35,7 +39,7 @@ click outside of the field to save the name.
 Set a Subsection Release Date
 ********************************
 
-To set the subsection release date, follow these steps.
+If the subsection should release at a later time than the containing section, set the release date. To set the subsection release date, follow these steps.
 
 #. Select the **Configure** icon in the subsection box.
 
@@ -60,10 +64,19 @@ To set the subsection release date, follow these steps.
       their **Progress** pages in the time zone that their browsers specify.
       Learners see other course dates and times in UTC.
 
+   .. image:: /_images/Educators_subsection_settings_basic.png
+    :alt: Subsection Settings Basics tab with the Release Date and Grade As fields
+    :width: 500
+
 #. Select **Save**.
 
 For more information, see :ref:`Release Dates`.
 
+********************************
+Set a Subsection Visibility
+********************************
+
+To change the visibility of a subsection, see :ref:`Hide a Subsection from Students`.
 
 
 .. _Publish all Units in a Subsection:

source/educators/how-tos/course_development/hide_subsections.rst

@@ -46,9 +46,14 @@ To entirely hide a subsection from learners, follow these steps.
 
    The subsection settings dialog box opens.
 
+   .. image:: /_images/Educators_subsection_settings_visibility.png
+      :alt: Subsection Settings Visibility tab with the Show entire subsection option selected.
+      :width: 500
+
 #. On the **Visibility** tab, locate **Subsection Visibility**, and then select
    **Hide entire subsection**.
 
+
 #. Select **Save**.
 
 None of the content in the subsection is visible to learners. In the course

source/educators/navigation/creating_course.rst

@@ -76,7 +76,6 @@ Create a New Course
    ../how-tos/course_development/create_hide_delete_sections.rst
    ../how-tos/course_development/exercise_tools/adding_text.rst
    ../how-tos/publish_units.rst
-   ../how-tos/create_subsection.rst
    ../how-tos/view_as_learner.rst
    ../how-tos/set_up_course/add_metadata.rst
    ../how-tos/use_section_independently_of_course_outline.rst

source/educators/quickstarts/build_a_course.rst

@@ -39,7 +39,9 @@ Follow the steps below to build your first course. By the end, you will have a f
 4. Create a Subsection
 **********************
 
-.. include:: ../how-tos/reusable_content/create_subsection.txt
+.. include:: ../how-tos/course_development/create_edit_publish_subsections.rst
+  :start-after: .. START CREATE A SUBSECTION
+  :end-before: .. END CREATE A SUBSECTION
 
 5. Create a Unit
 ****************
@@ -80,7 +82,25 @@ Follow the steps below to build your first course. By the end, you will have a f
 .. seealso::
  :class: dropdown
 
- :ref: `Edit a Course` (how-to)
+ :ref:`Creating a New Course` (how-to)
+
+ :ref:`Edit your Course` (how-to)
+
+ :ref:`Create a Section` (how-to)
+
+ :ref:`Create a Subsection` (how-to)
+
+ :ref:`Create a Unit` (how-to)
+
+ :ref:`Add a Video` (how-to)
+
+ :ref:`Create a Text Component` (how-to)
+
+ :ref:`Add a Multiple Choice Problem` (how-to)
+
+ :ref:`Publish a Unit` (how-to)
+
+ :ref:`View As Learner` (how-to)