Can't remember a plugin - First/Last

Hi all,

We recently commuted to Windows 10, requiring me to reinstall GH + plugins from scratch. I thought I had managed to grab them all but I seem to be missing one that I can't remember the name of. It had a sweet of general geometry tools, and specifically one called First/Last that was really useful for grabbing the start and end of lists. (Yes I realize there are many other ways to get that specific info - but Im trying to re-acquire that whole suite of tools)

Any help ?!

Thanks