ProxyLOD is a great tool, but it only works with HLOD. It would be nice to have a feature where I can manually set a new LOD Chain without import. Which means I want to add a new LOD from an already imported mesh or a mesh that was generated in editor.
This should do the trick UE4 Amazing Lod Maker - YouTube it does just that it generates LODs from your exisiting Assets as well. Auto LODMaker