The closest I got to any "action" on an organ was when, in my youth, I switched from Baptist chapel to CofE. The church had an even larger pipe organ. My job was to inflate the huge manual bellows that provided air to all those pipes, a rather noisy "pumping" action.
In addition to regular Sunday service, I'd be called into action for weddings and other services. As we came out of a quiet prayer, the organist would rap on the side of the organ, my cue to get those bellows inflated in almost zero time so he could hit the first note. No air, no note, and I used to pump my heart out to get the bellows inflated.