Apple Logic Express 9 - Manual (Page 212)

To open the Undo History window
µ
Choose Edit > Undo History (or use the corresponding key command, default
assignment: Option-Z).
The Undo History window shows you a list of all actions that can be undone. The most
recent step (editing operation), which will be the first to be undone, is selected.
To undo or redo multiple steps
µ
Click any entry to undo or redo all steps between the clicked and highlighted entries.
To undo or redo an isolated step
µ
Command-click the step.
This will undo or redo an isolated step without influencing all steps between the clicked
and highlighted entries.
212 Chapter 8 Basic Operations