There's a leveling option in the object placement tool, but it was not meant for such a large model, not sure how it would work.
Yea, I managed to find it, thanks anyway.
But I didnt' use it, I found a spot with terrain that's somewhat close to this model. And it looks amazing to see a city in Outerra! Can't wait ill we get some more.
Probably fastest support anywhere xD Keep it up guys!