Ok, we have lovely dihedrals, but 'angle of attack' as its called would be very useful (probably split into tip, midpoint and base angle for the wings). Angling the back down will increase lift, lifting the back will decrease lift... Its very useful for precisely adjusting where and how the lift of your plane works, and also VERY useful for making the body of your plane, now you can do this with mods, but ONLY if you have simpleplanes on PC and know how to use all the mod equipment, so I believe it'd be a quite useful implementation