Here I show using Outfit Studio to split a large mesh into smaller pieces and apply convex hull collision so it's not huge and blocky.
Tool links
NifSkope dev 10 [ Ссылка ]
Updated Nif.xml for FO4 [ Ссылка ]
00:00 Splitting mesh in Outfit Studio
07:38 Apply collision to separate shapes
13:05 Handling shapes under different sub nodes
