Maybe the 400F full freighters but the BCFs and BDSFs (converted freighters) are getting old fast. It's much more economical to operate the 777F which has a similar load capacity.
Well instead of interacting with a F/A you could simulate a Load-master.
In a typical cargo operation the Load-master will be responsible for the load sheet. So usually they will have to ask the flight crew for the block and trip fuel.
A couple of minutes before departure he will bring the load sheet and NOTOC to the flight deck for the captain to sign. He will then notify the captain when loading has been completed and will ask permission to close the L1 door.
It would be pretty nice if something like this could be simulated as it would definitely add some realism to cargo flights.
It really depends on the aircraft configuration but usually the left PFD and ND are powered through the APU Standby Bus which in turn is powered by the captain transfer bus through AC bus 1 or 3.
Hope this helps.
Kind regards,
Basten Heidema
Perfect timing, I'm off for two weeks starting on the 15th! :( ( Callsign ) Bheidema( Flightsim version ) FS9 ( Experience in Flightsim ) What ever you need me to fly! ( Timezone =/- UTC ) UTC +1