Undo and Redo
Undo and Redo allow operations on slides in a
slide show to be redone if desired.
Undo will restore the slide show to its organization
before the last operation. Redo cancels the action of
the previous Undo and restores the changes.
The functions effect the results of Copy, Paste, Cut and
Delete
Both functions may be executed repeatedly so that the entire
editing history of a slide show may be revisited and restored.
Short cut keys:
Undo: Ctrl+Z
Redo: Ctrl+Y