Someone surely has thought of this and maybe it's illegal, but the idea is to have selectable speeds on the 17" screen once in cruise control. Adjusting the cruise lever up and down half or full clicks is not ideal for adjusting speed. The screen could have buttons for: 45 50 55 60 65 70 75 +1/-1 +5/-5 customizable customizable Would anyone else like this? Is this even possible/legal? Would it only work on AP-enabled cars?