Redo the action you most recently undid, (Ctrl - Z).

Repeat the command to redo several actions or press the arrow next to the icon to get a drop-down list of your recent undone actions with the most recently undone action at the top. Here you can select multiple actions to redo at once.

 

Alternative 1:

1.Select Edit > Redo.

 

Alternative 2:

1.Press in the toolbar.