I wouldn’t mind a clear button to clear a single floor. Like push clear and then the lit floor to delete that one stop, and you can do it multiple times. Especially nice if it works in a sabboth elevator and then goes back to stopping on every floor. But, I’m not primarily thinking of the sabbath elevators, more I’m thinking about when I hit the wrong button and want to change it. Deleting multiple hits by children would be another perk.
Deleting everything with one button means you have to ask the elevator again for their floor numbers.