Verty
Suite of tools that help to ease the manipulation of positions and selections of vertices
Installation:
Maybe after downloading the filename is 'Verty.mzp.zip' instead of 'Verty.mzp'. Just rename it correctly.
Start Max4 or a later version.
Select 'run maxscript' from MAXscript in your main menu bar. Choose 'Verty.mzp'.
You can find the script in the category 'Vertex Tools'.
When executing 'Verty.mzp' a install-script is executed automatically - allowing you to setup a menu hosted in the main menu bar - containing the script.
To do so: type in the text field 'scripts' and press the 'add' button. Now close the floating window. Choose 'Verty' from the menu 'scripts' from your main menu bar.