(the aforementioned 'loop tools' http://area.autodesk.com/forum/autodesk-3ds-max/autodesk-3ds-max--3ds-max-design-2011/loop-tools-in-graphite-modeling-not-workign-correctly/)
If you have a poly and need to round it out, Graphite modeling tools has GeoPoly (in polygons). If you have a loop or a selection of verts there really isn't anything like that in max that I know of. BUT there are several awesome scripts that do it. Illusion Catalyst has Geo Edge Loop which is just like GeoPoly but for…