Range knob used to select between close and far gun sight (when no radar info) ranges back before the funnel. 700' and 1500' I think. Today it does FCR GM/GMT/SEA fine gain and TGP zoom.
Canceling the DGFT or MRM override mode doesn't necessarily return to NAV, it returns to the previous master mode (AA NAV AG). If DGFT/MRM isn't reverting back to a non-override mode when the switch is neutralized look for "dogfight self cancel" option in the configuration.
Pinky switch for FOV stepping. Range knob for the TGP zoom.
