First off thank you everyone on this forum, when a person needs help this is the place to go. I have a 2 gang box next to my patio door. One switch will be for the the living room lights and the other will be for my deck lights. I was wondering if I could bring one line in for both or do they have to be on separate breakers? Also if they both can be on one breaker does it need to be a gfci? Thanks for any input.