Thanks a lot for the reply, Stiebler!
If one has to touch the AI_sensor.dat anyway, one could enter values for maxheight that would allow an identification
Anyway, while thinking about it, I remembered that for some sensors the value from the sim.cfg file is used if the value is 0. For sonar this is 100 m^2 in GWX. However, the other sonar parameters differ from NYGM, so it's important for those not using your mod with NYGM to (maybe) adjust the value.
Regards, LGN1