I am remodeling an old bathroom. My new plan includes a GFCI outllet at the sink and downstream an exhaust fan with integral light and nightlight, and a separate shower light. How is the switching typically set up? i.e. Both lights and fan on at the same time, or switched on individually? Also my panasonic fan unit does not have an electric eye to turn on at night off at day- can this be done at the switch?