With regard to the Dr.1, it is just a port, and I'm afraid it will never be developed as a true MSFS model unless someone builds a new one from scratch. This particular Fokker Dr.1 was released way back ahead of the release of the game Rise of Flight, it being made and released by the same company that developed Rise of Flight. The Dr.1 model was released for FSX as a sort of marketing tool, and it was their only ever involvement in Microsoft Flight Simulator, as far as I know. The quality, still to this day, remains stunning, and the flight dynamics in FSX were made so spot-on to the real thing (it is unrealistically easier to handle in MSFS). That particular paint scheme, which is one of the repaints I made for it, was quite a fun use of various textured filters to try and achieve the streaked green paint over linen appearance as seen on the real thing (SE-XXZ), which of course was a factory process to try and achieve a level of camouflage.
The airports seen in my screenshots of the Dr.1 are "ESUC Timmele" and "EHOP Middenmeer Aerodrome":
https://flightsim.to/file/4155/esuc-timmele
https://flightsim.to/file/3166/middenmeer-aerodrome-vliegveld-middenmeer
I highly recommend checking out Borgillios' other addon sceneries as well - a lot of great little airports spread across Sweden.