Ranged Constraint Remover Tool
Picture this scenario; you paste in a large dupe and as soon as you touch it, it causes lag because every prop is getting its physics updated due being either no-collided or welded to eachother. This tool will basically remove all constraints in a given radius, with the option to select which constraints it should remove.
make sure to check out my other addons if you are interested.
Mah Uploaded GMOD Stuff