My thoughts on the cranks
Far right with the circle arrows - moves / slides the rail and spare car rail in and out.
Next to that with the arrow pointing left will be for a small section of chain link to move the cars through the loading platform which will also allow the train to stop at the station.
There might be another crank over the other side near the lift hill which will control that.
I have also noticed there is a camera mounted on the highest down section to “capture” the riders emotions / screams.
Cant wait for the official announcement