What happens is, everyone gets into the "elevator" and closes all the doors. Then when the elevator gets to the right stop, someone gets out on one of the floors (out one of the doors). Anyway, it was quite a bit of fun when we were kids. Expecially since the old fashioned hanging chime doorbells were in the elevator and we liked to make noise with them as we reached each floor.
So now we almost have an elevator with three closely spaced doors. Okay, not really since the other two doors have been removed, but you know what I mean.
Oh, by the way, the new door is in :)