Use it like a real lift. This is what the lift would have looked like (Service lift from Glades Shopping Center, Bromley). Yes, there are two lifts, and at the time the right lift was put out of service (due to a tragic incident that happened during the 90's at the time there) but the left (which is now not working and abandoned) was left working. This is what the lift would have sounded like and you would be able to find out what is on LM.
Credit to All