[Uzin]

There is also another manual , by Boomer, how to copy airfields, at the link :
http://ultrapack.il2war.com/index.php/topic,1977.0.html
I think it is unnecessary to create special static file.
What I do, is as it follows:

1. select the airfield on e.g. Svir map by Alt+left mouse button .Airfield turns red.

2. Ctrl+C : red colour disappear, you have airfield in your PC clipboard.

3. Load your WIP map in MapBuilder.

4. Point where you need the airfield, Ctrl+V : voila, airfield is there. Still red, now you may move or rotate it, as needed.

Enjoy.