Undo and redo
If you create, edit or format a design element by mistake, you can reverse the action by using the Undo command. Similarly, if you undo an action by mistake, you can use the Redo command to switch back again. You can undo actions progressively, each time restoring to the state before the previous change was made, up to a limit of 10 previous actions.
To undo an action: click the Undo button or on the Edit menu click Undo. Note that the action that will be canceled is shown in the Undo command.
To reverse an undo action: click the Redo button on the Edit menu click Redo. Note that the action that will be reversed is shown in the Undo command.