GITBOOK-69: undo/redo

Author: juney-lee

gitbook/manual/9.-utilities.md

@@ -21,9 +21,15 @@ The `RV_session_redo` command steps back through geometry changes activated by t
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 {% hint style="danger" %}
-`RV_session_undo` and `RV_session_redo` are not the same as Rhino's built-in undo or redo functions. For example, pressing Ctrl+z will **NOT** undo RhinoVAULT functions. If you want to undo or redo a RhinoVAULT-specific action, you must call these command explicitly.  
+`RV_session_undo` and `RV_session_redo` are not the same as Rhino's built-in undo or redo functions. For example, pressing ctrl+z will **NOT** undo RhinoVAULT functions. If you want to undo or redo a RhinoVAULT-specific action, you must call these command explicitly.
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+If you accidentally press ctrl+z and some of the RhinoVAULT objects disappear, simply call the `RV_scene_redraw` command to restore them.
 {% endhint %}
 
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 ## Open RhinoVAULT Session

gitbook/manual/settings.md

@@ -14,7 +14,7 @@ Under `Settings`, global parameters (`RhinoVAULT`, `ThrustNetworkAnalysis`) and
 
 These are the global parameters for RhinoVAULT.
 
-* **autosave** - If set to `True`, session files are saved every time a change has been made in the scene. Set to `True` by default.
+* **autosave** - If set to `True`, temporary session files are saved every time a change has been made in the scene. This feature is necessary for enabling RhinoVAULT-specific undo/redo, so it is recommended to not turn this off. Set to `True` by default.
 * **autoupdate**  - If set to `True`, any modifications made in the scene will automatically update the `ThrustDiagram`. Set to `False` by default.
 
 ### ThrustNetworkAnalysis