I've used every option and nothing is appearing. If it was working, I'd see the object as green, not white. By the time I could have this solved with Blender, I could've already manually processed about 150 to 200 skin vertices using my only known method - punching a lot of numbers into calculator and manually setting skin vertices one by one in MED's skin edittor. It's still nothing compared to 2000+ for hundreds of models.