Undo History (Editor Window)
Each time the patch is edited, be it editing a parameter or using cut, copy, paste, patch edit, and so on, the program automatically makes a backup of the current state of the patch so that you can undo the change. There are an infinite number of undo levels (limited by computer memory).
Selecting this option from the menus will open a dialog that will list all of the edits you have made. Select any edit and press the Audition button to hear it. If you wish to return to this edit, press the "Ok" button
To return to a particular edit:
The Undo Dialog
This dialog is displayed when Editor/Undo History is selected from the menus. It lists all of the edits that have been made to the patch.
Select any edit point and press the Audition button to hear it.
To return to a particular edit, select that edit point in the list and press the OK button.