I have managed to add them to my googlemaps.
You can find it in the Maps section on the website 
Could you possibly add them as Little Navmap userpoints as well?
I certainly will. I shall do it in an hour or so when I’m back at my PC. Any other suggestions are welcome.
It’s all done now! I’ve created a separate Little Navmap userpoint pack containing all 2,069 detailed small airports and airfields, so they can be searched, filtered and displayed independently from the normal airport database.
I uploaded it to Flightsim.to, but their AI moderation initially declined it because it mistakenly identified the CSV as an information-only list. I’ve clarified that it is a functional Little Navmap userpoint overlay and it is now awaiting manual approval.
In the meantime, it is already available to download directly from my website at https://www.fspghangar.com.
Thank you for the suggestion — it was a really good idea! 
While we’re doing requests 
and I don’t know if it’s possible but can you add a filter to this map? Most of my flights are GA however rarely do I land on grass and/or a runway length below 1500ft. If it’s to much work or simply can’t be done no problem because I like the (re)search for my next destination. 
I use FSXmap.com for my planning however it’s getting a bit out of date but it’s also great for research.
I’ll look into this
And thanks to the author @JohnnyT5000 for bringing this to our attention. Hidden in plain sight I visited some of these airfields since the beginning of FS2024 and noticed the extra detail but they are more detailed than I thought. This weekend I already visited 3 more airfields which I normally would have flown past.
Yes, this should be possible. The airport data already includes runway surface and longest runway length, so I’m planning to add filters for paved/grass/mixed surfaces and minimum runway length. That should let you display only hard-surface airports with runways over 1,500 ft. Great suggestion!
It’s now live!
I’ve added dedicated Small Airfield filters to the PG Explorer, including runway surface options, minimum runway lengths of 1,500, 2,500, 4,000 and 6,000 ft, plus a one-click GA Paved · 1,500 ft+ preset.
That preset currently finds 811 suitable airfields.
Thanks again, @PlaneHolland, for the excellent suggestion — it’s a really useful addition!
Great and thanks, this makes it a very nice and handy tool for planning my next flights!
Thanks a lot, you’re really fast 
I can’t take all the credit lol, had a bit of help from paid AI