Import follower body into BodySlide as a preset or slider set

[Darklocq]

I have a follower mod, Octavia Vampire Follower, who comes with her own custom body (UNP-based), but not BodySlides, so I can't make other outfits fit her and keep the same look. She has very thick thighs and big ass, and only a medium rack. The body does not look like any of the stock UUNP stuff, and my attempts to recreate it (or close enough) by messing with sliders and presets have all failed (there are not enough sliders to adjust enough things, like upper vs. lower thigh, inner thigh vs. outer thigh, etc.)  E.g., every time I get the thighs big enough in a side view, they look like crap from the front, and vice versa.

 

So, it looks like I need to somehow import her femalebody_0.nif and femalebody_1.nif into BodySlide, at least as a UUNP preset, if not as a lower-half-of-UI slider set (i.e. a pair of "Octavia Low" and "Octavia High" sliders).  I'm good at creating new presets derived from existing ones, or just starting with UNP and customizing from there, but I'm not seeing a means of taking existing body meshes and turning them into presets or slider sets.  I gather that it has something to do with Outfit Studio, though this is not an outfit but the base body.

 

My goal is to have something I can customize further as presets, to make a nude version (more breast gravity), a light gear version (some compression), and a tight gear version (more push-up/cleavage and some breast flattening).

[Darklocq]

Anyone? Anyone? Bueller? Bueller?

[Swe-DivX]

Does the body nif file have a tri file?

[RW311]