For watching and getting more out of films...
I wish that we could set different sounds for lowering and raising flaps. When I watch someone's film, I would temporarily sub in my own flap up and flap down sounds. Maybe just a recording of me saying "flap down" and "flap up"....
Why you ask?
So when watching a film from the cockpit I would get audible indication of what the pilot was doing. I also wish we could assign a sound to rudder right and rudder left, for the same training purpose.