I thought the instructions I linked are a way to select or activate collision for certain LODs because is selectable from 0 to more, it seams is for select the limit of LOD collision.
Is not problem the trace line, it can be adjustable distance and I’m using names of some static meshes, so other meshes with different names are not taken in acount.
The problem is that there are collision for all LODs, no matter if there is trace line or not. Collision for all lods consumes alot machine resources in my open world project.