Undo/Redo Lists dialog box

How to get there

Choose Edit > Undo/Redo Lists.

What it does

Choosing Undo/Redo Lists displays the Undo/Redo Lists dialog box from which you can select a point in the list of past actions in which to undo all the actions down to and including that point or redo all the actions up to and including a specified point.

Select Edit(s) to Undo. Click on an action in this list to undo all the action down to and including that action.
Select Edit(s) to Redo. Click on an action in this list to redo all the actions up to and including that action.
OK • Cancel. Click OK to perform the undo or redo, or Cancel to dismiss the dialog box without making changes.