1) Elevator door ghoul (actor) waves his hand toward the doors to open them. I can see this gesture from the control room monitor and at that moment I can open the doors using the pulley bar. Of course there is a sound bite!
2) As the guests enter the elevator, the overhead light turns on. This is a red LED which I can operate using an X10 remote (see video)
3) Once the guests are inside, the 'door ghoul' does have to manually close them. The overhead light turns off so it is pitch dark, a weight drops onto the elevator making a loud clunk with enough force to shake the elevator a bit, and then there is a sound bite scream.
4) Right after the scream, the back panel light turns on showing the moving panel only and along with the light there is a creepy laugh as the panel moves simulating the elevator going down to the crypt level.
5) Once the crypt level is reached, the overhead light turns back on and the doors reopen!
The following video demonstrates operation of the X10 remote to turn on and off the elevator light. For a detailed explanation of X10 and how it works, you can see this post