Wings renumbers automatically on autosave. It's enough to drive one bonkers. That said, the workaround I've used is to disable autosave, then import the entire mesh into wings, export it again, and then "turn off" the parts I'm not working on for the morphs in wings for clarity and speed. As I complete each morph, I export the parts individually. hasn't failed me yet. Also, morph mirror is essential for doing the left to right side cloning. Really cool little utility.

thou and I, my friend, can, in the most flunkey world, make, each of us, one non-flunkey, one hero, if we like: that will be two heroes to begin with. (Carlyle)