There's place for an optional horizontal slider on the top of the screen. Like the VTOL slider, it will not show unless it's necessary. I'm sure there will be many convenient uses like tank turrets and such.
Replace the original hinge rotator with a Two dimensional Hinge rotator. It will have all the options from the original one and allow additional dimension, so that it can serve the purpose of the Hinge rotator, as well as for 2D gamepad stick-like rotation. Ideal for thrust vectoring