Ok, with the "Default" and "None", how about we have a "Filters" tab that when clicked on it collapses a list of categories such as Bricks, Weapons, Vehicles and whatnot, and you'd be able to check what is filtered and what isn't.
Like say, clicking JVS, Vehicles, Particles and Bricks in the Filters list will make it so it only shows JVS, Vehicles, Particles and Bricks.