Reverses the effect of the most recent command.
Undo: Mark · BAck to mark · BEgin set · End set · Control · Auto · <Number of steps to undo>: To specify the number of steps to undo, enter a value. To place a mark so you can undo all commands back to that mark, choose Mark. To undo all commands back to a specific mark, choose BAck to mark. To group a sequence of operations, choose BEgin set. To end a set, choose End set. To change the Undo settings (turn on or off or change the number of commands that can be undone to one), choose Control. To undo a menu selection as a single command, choose Auto.
To change the undo settings
Undo control: All · None · One: To turn the Undo command on, choose All. To turn the Undo command off, choose None. To limit the Undo command to a single undo action, choose One.
To undo a menu selection as a single command
You can use the UNDO Auto command when you want to undo a menu selection with a single U command. If a menu item is not already active, this command inserts an UNDO Begin Set at the start of each menu item and an UNDO End Set when you exit the menu item. To use UNDO Auto, you must have the Control setting for All turned on.
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