I want to put a x-10 controler in a location that is the switch for the foyer light next to my front door. I have tree switches there one for the porch light and one for the foyer and one for the light at the top of the stairs. My question is if I replace the foyer switch with the x-10 controller will I still be able to control the foyer light with the x-10 controller? Larry in TN web site for switching diagram got me thinking,[Link: ourworld.compuserve.com] so any help will be great.