Possible to add GPS functionality to the JMB-VL3?

Hello friends,

One of my favorite planes in the game is the JMB VL-3.

Screenshot 2021-10-06 223006

It does not have any autopilot by default. However I enabled this by going to the Systems file and enabling the Autopilot there.


It was like this:

[Autopilot]
Autopilot available = 0

I changed it to this:

[Autopilot]
Autopilot available = 1


So now I have autopilot. However only HDG, ALT, VSI work.

GPS does not work. It will not follow the magenta GPS planned route. I have the WorkingTitle mod installed.

Is there something else I can tweak to make this possible so I can make the autopilot track the GPS?