Guys im new to modding im trying to turn a tree into a creature. I know it sounds silly. But please tell me how do i do this. LIke what steps would i have to take to do it. I got the object loaded i just dont know where to begin.

Any one. I read that if you turn a object into a creature it makes it have a shadow. So this is what im trying to do. So any can help me please? are is it not possibal? like in oblvion it was