diff --git a/README.md b/README.md
index 122f1dc..5ae93b8 100644
--- a/README.md
+++ b/README.md
@@ -9,6 +9,9 @@
   <summary><b>ChangeLog</b></summary>
   
 ````
+== 2024-04-19
+   * Enhancement: Engine Load "Options" (Reset IO + Copy From) #74
+   * SD Format - preserves stored patches
 == 2024-04-14
    * Enhancement: Patch storage (managment)
    * Bugfix: 
@@ -144,7 +147,12 @@ E.g you can chain the mono audio signal from an oscillator machine to the neighb
 
 >[Long press [LEFT]] enters the machine-selection-page.<br/>
 >[Short press [R-ENCODER]] loads the selected engine.<br/> 
->[Long press [R-ENCODER]] loads the selected engine (default IO-settings).<br/>
+>[Long press [R-ENCODER]] loads the selected engine extended mode.<br/>
+   * Load & reset I/O settings 
+   * Load & keep IO settings <img align="right" src="doc/engine_load_resetio.png" width=196px />
+   * Copy #1-4 (parameter values + modulations + I/O settings)
+
+<br/>
 
 ---
 ###### Screenshots
diff --git a/doc/engine_copy_from.png b/doc/engine_copy_from.png
new file mode 100644
index 0000000..13dfa15
Binary files /dev/null and b/doc/engine_copy_from.png differ
diff --git a/doc/engine_load_resetio.png b/doc/engine_load_resetio.png
new file mode 100644
index 0000000..0b9fd3f
Binary files /dev/null and b/doc/engine_load_resetio.png differ
diff --git a/platformio.ini b/platformio.ini
index 9b43173..6dcc38a 100644
--- a/platformio.ini
+++ b/platformio.ini
@@ -10,7 +10,7 @@
 [env]
 extra_scripts = src/build.py
 apps_json = ./app/index.json
-squares_and_circles_loader = 3e37b59 ; minimum loader version
+squares_and_circles_loader = 9de494b ; minimum loader version
 
 [env:squares-and-circles]
 platform = teensy@5.0.0         ; https://github.com/platformio/platform-teensy/releases