Unfortunately, I would have to use my own personal time and not work-time for this at the moment. I don’t have a lot of free-time these days to do a proper video-tutorial outside of work.
The post I made above about setting up and using HLODs. I’ve added some pictures to at least show how to enable it from the World Settings and th open the HLOD Outliner window. Beyond that the steps for the settings should help you get started inside this window. If you have specific questions you can post them here and I’ll help when I can. 