I have just purchased a condo. There is a lock box outside my door that the previous owner never used. She did not know the combination. I'd like to put a key to my door inside it so that if I'm not home and an emergency occurs, the housekeeper has access to my unit.
Please could you tell me how to change the combination? I read online how to do that, but pressing 'clear' doesn't help. I have to open the Supra lockbox first.