Personnaly, I didn’t have to change the HLOD layer. But if you want to change it, I think you have to change the default by a new one, yes. You can then have an other one for the other objetcs .
What I have done to test it in the default open world scene is :
-
I Changed the Landscape Max LOD to 5
-
Delete the previous HLOD by using the menu
-
I’ve then tested the game to be sure there was no more HLODs (If it’s ok, you should have holes in the distant landscape in runtime)
-
Then I rebuilt the HLODs with same menu “Build>Build HLODs” as before, but this time I chose Build HLODs.
And It’s working.
I do have the “cross” with no HLODs but it may be a technical neccessity to stitch hlods to the landscape.