Formerly Mat Clean, which was formerly Mat Kill.
*Indicates its newer-ish
*Collapse Stack(s): Collapses the selected objects, or if nothing is selected it will prompt to collapse all objects (even hidden).
*Pivot to World Zero (left click): Sets the pivot to the lowest point in a mesh, then center, then moves the object to the center of the world zero point.
*Pivot to World Zero (Right click): same as above but also resets transforms, applies rest xform then collapses the stack leaving an edit poly object behind.
Clean Mats: Assigns undefined as the material just like when the object was created.
*Clean Editor (left click): Resets the Material Editor
*Clean Editor (right click): Resets like above and applies Matt/Shadow material to the 1st material slot (does not apply the material to any objects)
Wire Color (left click): Sets selected objects to the same custom wire color or all objects if nothing is selected (materials do not change)
Wire Color (right click): Applies random wire colors to selected objects, or to all objects if nothing is selected. (materials do not change)
Color Swatch: Launches the color picker, all custom wire colors come from this picker (defaults to black).
Mat1 + Wire Color: Applies Mat Slot 1 to selected objects or for all objects if nothing is selected (Sets the wire color to the current custom color)
Run the script once from anywhere, or drag it into the 3dsmax viewport. It will now be available in Customize > Customize User Interface > Category: VigTools
*Fixed the broken download link.