Use the Undo menu item in the Edit menu of the Translate Table editor to undo your most recent cuts, pastes or deletes. Use the Redo menu item of the Edit menu to redo your most recent undos.

Undo

If an unwanted cut, paste or delete has occurred either press the key sequence Ctrl+Z or select Undo from the Edit menu at the top of the translate table editor:

The number of undos that can be done is limited to the undo limit set in the Options dialog box.

Redo

If an unwanted undo has occurred either press the key sequence Ctrl+Shift+Z or select Redo from the Edit menu at the top of the translate table editor.