Okay, here's the "how to save materials": File>Save As>Material Preset, then you get a .dsb file. You can also save posees w/ File>Save As>Pose Preset. Same thing, you get a .dsb file. Useful for your own work, and eventually, for sharing with other D|S users, but not yet useful in the general poser community. D|S can read .pz2s but not create them. And thanks for the suggestion about MPE, I'll go looking and see what I can do.