I found it last week when trying to find an easy way to align several verts in a polly at the same time. Together with that script, I find many others usefull scripts kindly provided as freeware by Neil Blevins:
http://www.neilblevins.com/art_assets/scripts/soulburnscripts_for_3dsmax.htm
So, I´m sharing the link with you all.
Say thanks to Neil for his generosity!