Yes, indeed I suggested to change the airfields name to its identifier, Because that's what pilots use, and apparently what Garmin expects.
I had not thought about airfields without identier, to be honest!
Would it be an option to not use slashes in the airfields name, but hyphen?
Or...., use identifiers where available (which is the vast majority of fields, pilots use) and the current description (preferably with hyphens) for airfields without an ICAO identifier?
I am a pilot/instructor trying your software as a possible replacement at our aeroclub for the Jeppesen Flitemap software. I am very pleased with SD as far as functionality and user-friendlyness is concerned; but problems interfacing flightplans with widely used handheld Garmin equipment (at least the Area models), is for me personally a no-go.
I have also an IT background, so "if identifier is availble, use this; else use current description (with hyphen instead of slashes)" seems a possible option to me.
But again, you're the expert.
Kind regards,
Mark