The four [F] designate foreign diplomats, politicians, dignitaries, etc. The rest are US diplomats, politicians, etc.that have yet to be named. So in addition to the names already dropped, add these to that.
They aren't thrusters. The 'pilot' is able to adjust the gravity field to modify the direction of travel. Think gravity hill (pushes) and gravity well (pulls) in the desired direction. Also, the gravity field, once established, maintains a positive 1G state within the field. So there are no G-forces experienced by the crew. Thus allowing radical maneuvers.