The Flight Director is part of the ADI display ( analog or digital) - basically the two -vertical and horizontal) bars or V-pointer that provide Fly-TO indications. If an aircraft doesn't have a FD installed the command does nothing.. if it does, then the command turns on and brings up (or turns off) the FD part of the display.
The lights do need looking at, I guess the nav lights have been left off due too them being hidden behind the armour plates on the Afgahnistan model, but the landing lights are also in need of a fix, maybe with shockwave lights. Anyhow i'm back off into me paint shack, still got the belly and fuel tank details to finnish on my masters.