Undo / Redo:
You can undo your last operation by clicking on the "Undo" toolbutton to the right of the Cut, Copy and Paste toolbuttons. You can also execute this same command with the keys <Ctrl + Z>.
You can undo your last operation by clicking on the "Undo" toolbutton to the right of the Cut, Copy and Paste toolbuttons. You can also execute this same command with the keys <Ctrl + Z>.