Undoing & Redoing An Action
To undo or redo an action. Click on either the undo or redo icons at the top of the editor, right of the save button.
Or you can use the shortcut keys below
For PCs
Undo (Ctrl + z)
Redo (Ctrl + Shift + z)
For Macs
Undo (Cmd + z)
Redo (Cmd + Shift + z)