To add the GPS, edit the panel.cfg using Windows Notepad.

1. Add the GPS to the [Window Titles] like this:

[Window Titles]
Window00=Simicons
Window01=Animations Control
Window02=CS Weather Radar
Window03=Map
Window04=Autopilot
Window05=Crew Messenger
Window06=GPS

2. Add the [Window06] entry like this:

[Window06]
background_color=0,0,0
size_mm=303,283
position=2
visible=0
ident=GPS_PANEL
gauge00=fs9gps!gps_500, 0,0,303,283

As for the Autopilot, I assume you want to use a different one to the one included in the 707 Captain, and that might cause a problem due to the AP being a part of the cxs701_xxx.mdl file. If you want to try it, you will need to modify the [Window04] entry so that the Autopilot you want to use displays correctly.


Note. As far as I know, the Simufly Delco CIV-A INS doesn't work in Windows 10, so if that is your operating system, then that will explain it not working. :(