Disabling physgun on a prop_dynamic? (using key values)

Awhile ago, someone mentioned that there was a keyvalue you could set on a prop_dynamic to prevent a garry’s mod physgun from interacting with it.

Making a script to prevent players from interacting with all prop_dynamics is out of the question, thanks in advance.

I’m also trying to find the input to fire to change a prop’s model. Looking through the wiki at the moment.

gmod_allowphysgun is what you’re looking for. For some reason it’s no longer documented on the wiki, but here’s an archived version.