Add third party APs to the tower in cnMaestro

Now you can only add on-boarded APs to the tower you create in cnMaestro.

It would be great if you can add a Virtual AP (or some self-created AP) to the specific tower. That way you can know the presence of the non-yet-Cambium AP/P-t-P link at that site/tower, set its beamwidth angle, azimuth and elevation, operating frequency and better do your frequency planning seeing it all on a map. No other functions really needed.