I have managed to import 60 models in the game! It was absolutely impossible to reconstruct models, but I did it.
On the way I have fixed a serious (as for me) bug - global variables. The problem is that if yu have numerous models that you are to import in one game file and every model uses global variables of its own - be sure that the global variable PLACE IS IDENTICAL in all all all your files. Otherwise you will always have GV (let's suppose) number 2 in the list of your model which is another in the main game file and that will kill all your events, using GV, some of them may simply disappear!
That comes because events are linked not with the GV by the GV content but GV place substitution number.
I have a trouble. I need to choose ships. I think it is convinient to use buttons here. But buttons do not APPEAR on the screen though correctly placed in the game.
I deleted some events and when I delete the events controlling the game time (days, hours indication) and zooming the buttons appeared. Are they confronted with the events? I tried to use combobox. It is also is killed by those 2 events.