Oh man imagine turning a simple button into a menu where you can select airspeed, heading, altitude and vertical speed

@Zoomzoom999 Some planes dont have trim

You could also adjust trim

@biggasgigant yea that could be cool, meanwhile try to make the plane work well with the auto pilot or use gyros

@Minecraftpoweer I nean the autopilot will automatically turn the elevators and ailerons to keep the altitude

Generally if you can level the wings very well it will keep the altitude.