So you have no idea how your idea would work? I'll tell you why you don't know, because it's impossible. There is a reason why real airplanes have a stick, throttle, and pedals, we don't fly around pushing buttons on the screen.
But you would never use it because you are always on the computer.
I would use it when not on the computer.
There are many possibilities. One would be controlling your aeroplane by tilting and rotating the iPad similar to how Xplane or similar flight sims do it. There could be a thumbspot on the screen that when held down would switch to views by tilting and rotating. It would take some thought but is certainly doable. Some may even prefer it similar to how some prefer using a mouse to fly vs a joystick.