Help adjusting mesh position in OS?

[Pheade]

Greetings!

Yet again trying to make a new and improved necromancer character.

 

So this is my dilemma: I've been trying to adjust the position of the bone belts included in the Aesir Armor mod

so that they line up with the hips of a 100% 7b Bombshell body made with UUNP, instead of hanging down around 

the thighs as these decorations are meant to.

 

Thing is, every time I try, OS crashes when I hit the 'Finish' button after loading my femalebody_1.nif and the bone belt in question.

 

Am I being stupid, and this can't actually be done, or... what?

 

I know I moved it once before, before my faptop shit the bed, but for the life of me I can't recall/recreate how or what I did.

 

Any help would be appreciated!

 

Regards,

Pheade