We were recently in California, and spotted this button in the elevator in our hotel. The urge to press it was almost overwhelming. I can only assume that it turns the elevator into a much more epic, adventure-filled ride.
On the other hand, if too many people hit the same button in their own elevators at the same time, you might have another 1906-level earthquake to deal with, and that would be a bad thing to have on your conscience!
Also, there seemed to be no buttons available for the Confectionarium or for “Up and out” which is an obvious oversight.