Material Tool

Hello, in the old version of the garry’s mod where the addons was in an folder, not in workshop, i had an addon that in gmod you had an tool and with that tool you could change the material value of an object, exemple: team fortress 2 pyro model, and if you use it on him/her, you could change from blue pyro to red pyro, uber pyro, etc. Someone knows it ?
I found the name file, is “skinswitcher” but i can’t find it for gmod13 or in workshop.
Here is an link of the old download :

Sorry for my english, my native language is not english.

Easy Bodygroup Tool ?

Sounds more like changing skins… skin and bodygroup are both builtin c-menu functions now you don’t need a tool