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─────Programmer's WorkBench─────────────────────────────────────────────────
 
     _pwbredo := cancel meta undo <
 
     Cancel        Establishes a uniform "ground state" by canceling
                   any selection or argument.
 
     Meta Undo     Restores the last "undone" modification.
 
     <             Restores the function's prompt (if any). By default,
                   function prompts are suppressed while a macro is
                   running.
 
     See
 
     Cancel, Meta
     ◄Edit menu, Redo►
                                    -♦-