Drag-n-drop miauu_WeldToLastVert.mzp to 3ds max. Go to Customize - Customize User Interface. Under "miauu" category you will find "Weld to last vertex".
Works with Editable_Poly and Editable_Mesh obejcts and Edit_Poly modifier.
The best way to use this script is to assign a hotkey.
Additional Info
Script was tested on max 2009 but should work on max 9 and 2008.
VideosComments (3)
Nnudity · 2011-11-01
neat. this is super useful
Matyrix · 2011-02-19
As i can see, it works like the "collapse" function?
miauu · 2011-02-19
Yes. This is faster then targed weld vertices one by one. :)