I have been trying to get my head round this too and I think;
S2 switch for pan - When Up (f) it points forwards all the time
Centre position you can manually pan the camera
Bottom position when you rotate the aircraft the camera stays in the same orientation always pointing at one position. So if you aim camera at say a tree, then fly round and round the camera will always point at the tree
S1 switch - When the switch is up or middle then the tilt is manual and the slider works the angle of tilt. I think Up and middle position are identical?
When the switch is bottom (V) the slider controls the speed of the tilt[/QUOTE
Thanx alot! I will try that tomorrow and will come back with the result!