I would suggest this topic is an "Interfacing" Question - more or less...
I would like to:
1) run FG on multiple computers
2) have the PFD & NAV Display (in my case its an A320) on the 2nd computers dispaly
3) ideally the 2nd computer should be a raspberry
4) if I understood the concept, the CANVAS-Subsystem would be the first choice for that
5) what works with the first another computer should also work with more (CPT, FO, EWD-Displays and MCDU's may be as well)
Can anyone give me please a hint where to start with?
regards