Problem with MoW:AS's GEM Editor

[Tigerium]

Hello everyone .

I bought the game about 1 week ago and I played skirmishes and multiplayer ... But then I started using the GEM editor , but wasn't understanding anything so I followed Youtube's Tutorial . After a day or two I made a good map and succesfully made units battle and stuff .

But here's the problem : My map doesn't have any vehicles , Heavy MGs emplacement or canons because I can't get men use any .

Here's what I do , maybe some of you will notice my error : I spawn a couple of men , set them "Player 1" and controlled by USER , then I spawn the vehicle . I go on "F3 mode" and I try to select my units but I can't , they aren't controlled by USER . I come back on "F2" and check if I correctly set the unit "Controlled by USER" and everything is OK . But it doesn't work , I can't select my men in F3 Mode to get them inside the tank or whatever .

BUT : When I don't select any player's color and set them "Controlled by USER" , I can succesfully get them inside the tank ... Once they're in , I tried to set them "Player 1" but they went out of the tank .

Please help me , I tried everything that was in sight of my knowledge .