Can someone please explain how to make Poser recognize vertex groups, or "pinned" groups from Blender? Example: constraining waistlines in the cloth room. I was able to do this with Silo, but Poser isn't seeing Blender's format the same way. Thank you!

You can export vertex groups from blender by checking the polygroups in the export menu/pallet thing. Poser should read them. Then in the cloth room, set up your simulation and click on constrained group (or another group you want to work with) Click on add >group> the poly group you want to include.

Thank you. This seems to be working. I haven't been able to make clothing in Blender because when I add the body collision, the clothing object blows up and the program crashes. Hanging a towel works fine. Maybe it doesn't like working with M4/V4 figures?

I haven't had much success either, but I figured it was user error. One thing I do remember from a while ago was that you need to enlarge poser figures by at least 10 to get the sewing to work. Have you tried that?

I really haven't done "sewing". Just working with a basic skirt or loincloth. Tutorials make it look easy, but they always do. Scaling it up doesn't seem to help for that.