This is a "Map" file (.spm) that any user can create in Shotgun Pinboard V1 and share with their Squadron or whomever they like. The file can only be read with Shotgun Pinboard. Steam version will eventually (and hopefully) have Community workshop uploads of created maps, ground objects and aircraft. as always this file is customizable so you can add cutom radio frequencies, Airfield entry and exit points, Beacon locations. whatever you want. the only problem with the app is adding everything you want takes time, so sharing is a MUST. and the files can get large depending on the picture used.
So here is one I prepared earlier....