My main service panel has one neutral/ground buss bar. It's full, and I need to clean it up because there are instances where grounds and neutrals are combined under one screw. This passed inspection when I bought the house, but I have been finding lots of things that our inspector missed... QUESTION 1: Can I buy a separate ground bar, screw it to the main panel, and move all the ground wires to it? That will free up lots of space on the neutral panel so each circuit can have it's own screw. QUESTION 2: Should that ground bar be attached to what will then be the "neutral only" bar with a heavy-gauge jumper? Thank you!