Windy,

The 707 & 727 F/D's sadly do not really work.
This is a know problem and we are hoping that some day the problem will be corrected. Don't hold your breath.  :o

As for the hydraulics, the 707's I flew had all the controls on the lower F/O's panel. The handbook shows switches on the F/E panel which are not modeled in the CS plane.

Pretty simple system since you had a utility system to run the gear, flaps and spoilers and a separate rudder system. Ailerons and elevator were not powered.

Lou