Ok so there's the trick with RPG maker, i can't upload the background directly to roll20, but i can take a screen shot of my background and upload it into roll 20, thing is, the graphic style isn't exaclty the same so it end up being a bit ugly; Plus i have to add the decor from roll20 directly and not from rpg maker, or people will walk on it instead of "hurting it" i don't know if what i say make any sense at all.