Use the arrow keys and page up/down keys to move the viewpoint for the film. Use the Set Up Camera Shot tool to save the position, use Grab All, and specify the recording time, zoom, max zoom is 5, and "world pointing" for shot type. The recording time is in seconds so a 3 minute film would be 180. You need to set duration for "ending camera".
I start recording on the runway so I just move the "camera" straight out of the cockpit to the runway intersection. F8 to pan then I pan the view back to the aircraft.
Once you save the shot you can reuse it with any film made at that field. Just open the shot first then open the film you want to use.
Btw I use manual trim and I set trim for level flight after a dive to the deck.