Undo action
The Undo button {icon-undo.svg} allows you to undo your previous action, or even a number of actions. You can use the [key Cmd] + [key Z] shortcut on your keyboard.
There are some actions you will not be able to undo, you will notice the Undo button changes to a grey color.
Redo action
The Redo button {icon-redo.svg} allows you to restore any action that was previously undone using an undo. You can use the [key Cmd] + [key Shift] + [key Z] shortcut on your keyboard.