I have been away from Poser for a while but as I need to train my programming skills a bit I was thinking of taking on an old idea I had.

I want to make a program that takes a poserfile and export morphs for selected groups.

I could work around all problems by importing the model into Silo and manually export each group in order to use them as morphs. Timeconsuming stuff if there are many groups to export. 

But in order to do this program I really have to understand how to create the correct vertice order in the morph file. That is, if I am to do a morph for the hip group then by checking the included faces I know witch vertices that is supposed to be in the file but how do i know in witch order they should be?

Does anyone know how create the correct order?