Group files by Kind?

I'm late to the party, but still like to mention the CustomGrouping column set I maintain for some time.
It already has/had the FileTypeGroup column: Columns: CustomGrouping (group by SizeRange/FileTypeGroup..)

I added the "Kind" column to that set as well. Hope you don't mind me stealing your code. o) It's just to keep belonging things together (for me), others might prefer specific addins for 1 or 2 columns only, but my script addins folder explodes. What version you choose is.. up to you. o)