To undo a layer, select it, click the undo button, and then select the layer you want to restore.
This is not the shortcut key for undo and redo in Photoshop. The shortcut key forundo and redo in Photoshop is Command-D and Command-R.
Undo is a feature in Photoshop that allows you to restore the last action taken in a document, or the previous version of a document.
There is no one definitive answer to this question. However, some tips on how to change Ctrl Alt Z in Photoshop may include using the undo andredo commands, changing the shortcut keybinding for Photoshop, or using a third-party software like Adobe Photoshop CS6 Central Manager.