"Upgraded" Polyobject
Allows you to shift+drag edges to create new polygons.

Real great addition made by Michael Duffy. I mirrored it here due to the "slim" availability on other sites..

How-to Install:
New epoly.dlo / overwrite your old one with this.

epoly_42.zip - MAX 4.2 version
epoly_release.zip - MAX 4.0x version