UNDOCTL system variable
Undo control
Specifies the state of the UNDO command. The value is stored as a bitcode using the sum of the values of all selected options.
Read-only
| Type: | Short  | 
                     
| Saved in: | Not saved  | 
                     
| Default value: | 
                            5  | 
                     
| Possible options: | 
                            0: Undo off 1: Undo on 2: Only one command can be undone 4: Auto is turned on 8: A group is currently active  |