Falco's prop protection, Manipulating models via C-Menu no longer works

I’m running a gmod server and I’m an admin myself on the server.
Problem is that since I’ve using Falco’s prop protection, I can no longer manipulate models in the c-menu, such as removing the gravity, editing the bones etc…
It just doesn’t apply.

Is there a way to change this? I don’t find an option in the Q Menu in the FPP settings.

Thank you.