While reviewing a film, I thought "It'd be nice to be able to center on certain objects, looking down", so as to measure accuracy of 8" guns, or divebomb runs on SBs, or even see how close your bombs came to the hangar you were aiming at.
Naturally there's far too many objects to do them all, but just the major strat stuff, manned guns, etc, would be great to be able to "external zoom" to, because these things normally you cannot focus the camera on without much time and effort.
Just a thought.