I used the shader of the indicated page and it is the same as the shader of the tree creator. The trees only rotate when placed inside an EmptyChild GameObject and in this there is a LOD Grup directing to the Mesh. In no case does the collider appear in the overview. I'm using Unity 2018.1.3f1 for PS4. Imported SpeedTree trees work. But I have many made the simple way and would like to use.