Squashman,
thank you very much for your hints and tips; actually I had already realized some of them on my own, fiddling with this new (for me) tool, which looks really cool and easy to use.
Unfortunately, I had no luck with this buggy map and its weird takeoff points on some runways, because, notwithstanding I had (apparently) successfully moved by unlocked FMB, when I tested again the map with the new
actors.static, the plane at takeoff stubbornly spawned on water (on Salamaua)!
I followed your suggestions, placing the new
actors.static and some new files self-generated in the process (texts and an empty one - sorry, I'm going on memory) into MAPMODS folder, inside MODS folder of my 4.13.4 installation.
Perhaps I'm missing something or doing it wrong; I would take advantage of your generous offer to get a well-done, fixed map, when you've time. For now, I'm playing with available airdromes (I mean those with usable takeoff points): I would have had some allied airfields closer to the (moving) front, although TD made another big mistake missing GUSAP, since my Japanese squadron was based all the time at But.
Thanks again,
GB