Let's see how to do this. Necessary :
Nifskope and, of course, SMP and all requirements , As far as I know, the best are COCOBody and BHUNP Baka Factory
Obtained the necessary, open NifSkope, import the femalebody (If possible from CalienteTools)
Extend 0NiNode (From here you will need to use Block List and Block Details, for page changes) . Righ Click On 0NiNode , select Block/Insert
From the list, look for NiStringExtraData