When I want to use dialing wheels (not sure whether that's the right term) with the touchpad on my notebook, I can basically just increase numbers, e.g. altitude in autopilot, frequencies etc.) I use the two-finger gesture for scrolling that would usually be the mouse wheel. There is a very delicate area/process, when I just make a very quick and very short movement from the top of the touchpad downwards to get a decrease. But it takes ages to select the numbers I want and feels more like in a casino - pure luck.
Anyone knows a solution (except using a mouse, that is).
Thanks in advance,