Download : separateBySmoothingGroups.zip
Unzip script into: C:\Users\ezaitsev\AppData\Local\Autodesk\3dsMax\2014 – 64bit\ENU\usermacros\

How-to install and use:
Download : separateBySmoothingGroups.zip
Unzip script into: C:\Users\ezaitsev\AppData\Local\Autodesk\3dsMax\2014 – 64bit\ENU\usermacros\