It don't think it has to be empty, I'll have to test it out to be sure. You would also need to use load after rules within the Arthmoors village group or make sure all patches are added to that group. Adding them is much easier, as loot will then handle the sorting inside the group. Otherwise you will get these errors. Failed to sort plugins. Details: Cyclic interaction detected between "FarmhouseChimneysKarthwasten.esp" and "Darkwater Crossing.esp". Back cycle: Darkwater Crossing.esp, FarmhouseChimneysDarkwaterCrossing.esp, Karthwasten.esp, FarmhouseChimneysKarthwasten.esp