The license prohibits reselling the code but if you’d like to share add-on code with each other feel free – please email each other directly rather than posting here.
I have a lot on my development list already so I don’t yet have plans to limit searching to only the first POI from a map (other than the filter I mentioned).
I don’t know if it will work for you, but one workaround is to just use two different posts:
Post A – the main post. Create a map with a single main searchable location here.
Post B – a second post. Create the full map with all locations here.
In Post A, add a shortcode to display the map from Post B using [mappress mapid=123]. When users view Post A, they will then see the full map. But for searches, only the single location that is actually attached to Post A will appear.
Post B can be excluded from queries by assigning it to a custom post type, different category, etc.