This script converts all selected objects to editable poly, Clears the smoothing groups and adds a gray material.
Installation: Just drag and drop the script into the 3ds max viewport. Then go to Customize > Customize Interface > category: waRp Tools > Convert to editable poly and add mtl
It was only tested in 3ds Max 2013
It calls the RemoveTurbo script (but it can work without it as well).
If you like all of the scripts that are in the tutorial you can download them by clicking the warp_tools_bundle.rar in the attachment