I have an outside light at my front door that can be turned on from inside on a double light switch the other switch controls the ceiling light just inside the front door. What I want to know is can I take a feed from this outside one to the side of my house and add another maybe 2 lights or downlights in the soffit. I also have a security light at the back door that runs from a wall mounted fuse box in the kitchen if this would help in anyway. Advice and help would be appreciated, Thanks.