You could just execute the FUNC SI command from the command line. > On Apr 16, 2022, at 7:40 AM, Bill Troop <billtroop@xxxxxxxxx> wrote: > > Does anyone happen to know how to turn on/off insert/overstrike mode? On my Macbook I have accidentally turned on overstrike mode . . . . but I don't know by what accidental key combination. There doesn't seem to be an insert key.