Does it make landscape and trees that are far away visible, but in LOD form? I'm assuming this is what it does. And, is there a way to make it work, as I'm working on a worldspace and it's severely hindered without it. Thanks

http://www.gamesas.com/topic/1356815-creating-new-worldspacesdiscussion-thread-5/is the reason why nobody is answering you. We're not trying to be rude it's just that this topic has been discussed again and again and again. Thousands of words written about it.

It causes depression and computer shutdown, though I think it was designed to add all the distant stuff like ground textures, rocks, trees and so on. It sort of does but requires a lot of effort and even then doesnt always work.