I'm digging out the whole internet to find out a way to set Dynamic GPS coordinates that is related to PB, and follow its(refreshing position).
What I see is that you've been closest to answer.

ex.
PB generate GPS, related to it like x-1, y-10 in its own (PB)direction.
I'd like to use it to get RC guide a small ship to the connector (or some distance from of it) on any other ship.

So far I found this.
GPS Ingame Scripting API - Example (V2) with generate such a GPS on PB itself, but it's now useful for this purpose.

Can you help me with?
Thank you in advance!