This menu is also displayed when you right-click in the graphics area.
Restores the window to the state it was in before the last operation.
This command can be used repeatedly to undo the last N operations, N = Number of edits saved
The Number of edits saved is changed on the General tab in the Project | ME'scope Options dialog box
Restores the window to the state it was in before the last execution of the Edit | Undo command.