I'm having a moment where I can't for the life of me how to wire something, the setup is that there are three outside lights at 3 seperate patio doors. The customer would like the option of switching each light individually from its own switch (next to patio door in each bedroom) plus be able to switch all 3 lights from one other switch in the living room. Its been a long few days and my brain just won't work. Is it do-able and if so how??