Yeah, I would really love a script that creates the easy and very handy temporary snap pivot that is in XSI, it's really good imo, miss it a lot in 3ds max.
I think if you change the transform center to Local or Parent, and the pivot center to Pivots, then they should all snap to a single vertex? You should see each vertex with it's own pivot tripod. Sorry, don't have Max here to test.…