How to open up Bodyslide Presets in NifSkope? (New at this)

[0modskilzs]

So I am new to using NifSkope, I am trying to make new spears for a custom body I have, it has hugs tits and belly but the belly physics seem to stop once it gets to a certain size. I wanted to see how I can add better physics to it using NifSkope and reading the CBPC Collision Config Editing Guide I got from CBPC - Physics with Collisions for SSE and VR but in the images I see they have what seems like a custom body open? I tried to open the body I wanted to edit but it doesn't look edited at all. I can't seem to open presets either? I have little idea how to work stuff in Nifskope, I am trying to look around for help on Google but get 6 pages of results. Maybe I am using NifSkope the wrong way? Or don't know fully how to work it? I would really love some help or poniters. Also I have tried to use SINFUL CBBE to get the belly to jiggle more and slowly but no matter what I did it just jiggled like one of those door stoppers while funny wasn't what I was looking for. So far I got this

 

 

[RW311]

Shape data is base shape before slider is applied and the presets actual output mesh would end up wherever you direct bodyslide to build it to so you are in the wrong folder.

Normally it's skyrim/data/meshes/actors/character/character_assets.