@ Boomer:
just some words:
iterative creating map , not straightforward process, at least for me : correcting something in unlocked FMB, then working in GIMP directly on map_T, then obtaining the ed_M0X maps. And again repeat the process. Very useful for searchinmg artefacts on making map, orientation, perhaps also locating airfields. I see that at least for me, the pgm will be very useful. I am not so guru on map making, so each instrument may help me.