Cisco ISE
It sounds like Cisco ISE’s TrustSec tools.
The good news is that in the latest version, the mouse wheel works most of the time. It used to be click 5 boxes, the move to the tiny little scroll bar and then click 5 more. Now you can click 5 and scroll using the wheel. So safely clicking 676 boxes when you have 26 groups is almost doable without too many mistakes now.