I follow the visual cues on the HUD, I fly the A10C though, never touch the FC3 non clickalble aircraft.
The only autopilot functions that has, and bear in mind its newer than the A10A, are heading hold, path hold ie climb or dive while on a set heading and then there is altitude hold, where you can put the A10 into an orbit and leave it there.
There is no ability for the AP to fly your course for you.