Use Redo to reverse the last action that was undone by Undo. If you are not satisfied with the result of the Redo, use Undo.
Click Actions on the toolbar and choose Redo.
Choose Edit > Redo.
Press ⇧⌘Z
Control–click and choose Redo.
Note: When using Redo from the Edit menu, the name of the specific action to be redone is listed.