Share Email Facebook Twitter LinkedIn Commands for Removing Objects and Correcting Mistakes Commands -PURGE (Command) BREAK (Command) BREAKATPOINT (Command) CUTBASE (Command) CUTCLIP (Command) ERASE (Command) JOIN (Command) LAYDEL (Command) LAYMRG (Command) MREDO (Command) OOPS (Command) OVERKILL (Command) PURGE (Command) PURGEAECDATA (Command) REDO (Command) REDRAW (Command) UNDO (Command) System Variables COMMANDPREVIEW (System Variable) UNDOCTL (System Variable) UNDOMARKS (System Variable)