That'd fit in with the checklist idea I had, actually. Basically there'd be panels added inside the dropship for access to electrical systems, fuel cells for a small inbuilt reactor, fuses, etc. and the PO can speed up transport flights by doing checklist interactions with them before/during the flight. An example of a roundstart checklist (note that all of this can be done by anyone with engineering/power loader skill, so the PO might need some engineering ability added if this checklist is used as a template):
1. Confirm connection to shipside power via umbilical (Check the outside to make sure a cable near the engines is connected)
2. Activate electrical systems (use an emergency release on the doors to get to the cockpit, then turn on power to the doors, lights, and component slots. If this doesn't work, do repairs in the electronics panel in either the cockpit behind the pilot seats or in the passenger/cargo compartment)
3. Check battery readouts (done from the cockpit, if batteries read a certain voltage, they're good)
3A. If any battery reads 0V, remove and replace with a new one immediately (done from the electrical panel)
3B. If any battery reads below x volts, switch it to "CHARGE" and return to standby setting once at the proper voltage (done from the cockpit)
3C. Repeat until all batteries read x volts. Switch batteries off for reserves.
4. Check reactor fuel cell levels and replace if needed (can be checked in the cockpit or by pulling out the fuel cell from a panel similar to the battery/electrical panel)
5. Check engine fuel level (cockpit) and refuel if needed (by the engines)
6. Equip dropship for operation (current prep routine)
7. Computer startup
8. Engine test while the computer boots (mostly to improve efficiency in step 9 by getting fuel burn rates and thrust potential)
9. Have computer autogenerate a flight plan to the AO and back (if MT/CE/XO/CO) and set first drop/drop frequency times (as XO/CO, can be done from CIC, hangar, or Dropship cockpit) or manually program in a flight plan (if PO, takes longer but guarantees a shorter flight time on transport at the start and perhaps extends the flight time of CAS)
10. Activate reactor
11. Engine startup
12. detach umbilical cable; Dropship will now be operating off internal power generation.