So iv been messing around with game designs for a while and I’v finally got off my arse and started to make it in unity. I have basic knowledge nothing extensive and all and I’m learning pretty slow. I had a look at some videos but cant seem to find exactly what I’m looking for so I was wondering if I could get some help here. I have placed a tree in the scene and put either a mesh or a capsule collider on the tree and it works perfectly fine if I run the character controller into it. but that’s 1 singular tree and I don’t want to have to place 5 million trees so of course I want to paint them on. Iv tried doing it as another prefab but I still cant get it to work :(. Could someone please explain to me step by step how to get collisions on painted trees and I might even send you over some cookies. I’v looked over the documentation on it and I still cant figure it out. please help I’m losing my freaking marbles 
Nevermind guys I’v figured it out! No cookies for anyone! Nom.