User has just undone a transaction in error, and wishes to redo the action. The user can click edit-> redo, and the most recent transaction will again be made as if no undone had occured. As an alternative to edit-> redo, the user can simply type in Command followed by character key 'y' to complete the same transaction. The command key is the mac equivalent to Windows control key.

-- CbelmeR - 14 Oct 2004