Here is how to add the default GPS 500 to the panel.cfg

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

Add that line to the bottom of the list blue text

[Window06]
background_color=0,0,0
size_mm=456,378
position=2
visible=0
ident=GPS_PANEL
gauge00=fs9gps!gps_500, 0,0,456,378

Add that to the panel.cfg (putting it at the very bottom is fine (I would put it below [Window05] directly above [VCockpit01]).

To change the next waypoint in the flight plan:
Open the GPS 500 (SHIFT+7)
Click the FPL button.
Click on PUSH CRSR to turn on the cursor
Scroll down the list of waypoints until you reach the one you want to go to. Make sure it is the one that is HIGHLIGHTED!
Click on the MENU button.
Move the curser to ACTIVATE THIS LEG (I think that is what it says) if it is not already on it.
Press the ENT to activate the leg.

If any of the instructions for changing the waypoint are wrong. I will edit this post. ;)

Hope this helps.

Mark

NOTE: These changes are for the default 707 panel.cfg and NOT for the panel that uses the CIVA INS