What's the addon that puts the little box on the side of the screen?

I’ve played GMod since gmod 9, but I hardly ever played multiplayer until recently. One thing I noticed is that in the server I started to play on, there is a little box on the right of the screen that appears when you mouseover a prop, showing the name and stuff. It is super handy for building with SProps, but I can’t seem to find out which addon it is. The admin of the server I play on doesn’t know which of his addons do it, so that’s why I’m here.

I’m pretty sure that this is the correct subforum for this, but please correct me if I’m wrong.

Falco’s Prop Protection?

[editline]6th June 2013[/editline]

Shows the prop information at the right hand mid-corner of the screen I believe.

Hmm… Is it possible to get just the little box so I can see the names of props without using the entire prop protection addon in SP? It’s super handy to see the names of SProps for easy calculating.