I would like to control an external light fixture that has a switch inside the house with an external motion sensor *and* with the smart bridge. Is that possible? I can do this with my x10 system (switch responds to both the house control timer and the external motion sensor), but I want to move into the 21st century with a new system. Ideally, the sensor would talk to the smart bridge, but if the light switch can listen to more than one command source (external motion sensor and smart bridge) that would also work. Thanks.