From: Stratford, Connecticut
In the Op Cartwheel (long) scenario, I moved the 1st Marine Para Bn by sea from Brisbane to PM where I had a fleet of available C-47s. I used an F-5A recon to confirm Jap held Nadzab was unoccupied -- as the para force is too small to just drop into the laps of the enemy, assuming I can do this in the first place -- selected a C-47, then the unit, then the destination in that order.
Later I used the same procedure to drop them on (unoccupied) Hoskins, took the airfield and began transporting "leg" troops that are now contesting Gasmata (160 points!) without having to use sea transport that would be well-within range of the deadly Jap G4M torpedo bombers.
In each instance, I used C-47 transports (within their flying range) to drop the paras onto unoccupied enemy-held objectives with airfields.
I never saw this in the PDF manual and will (carefully) experiment with these troops in the future as I don't want a Pacific "Market Garden" on my hands.