How can I control my exterior lights with a timer on a triple pole switch?

I want to control my front (recessed down lights on porch and front of house) lights, side (sconce) lights, and back porch (recessed down lights) on a timer. They are all florescent bulbs. Is there any way I can do this when some of them are on triple pole switches, where not all of the switches are for the... show more I want to control my front (recessed down lights on porch and front of house) lights, side (sconce) lights, and back porch (recessed down lights) on a timer. They are all florescent bulbs. Is there any way I can do this when some of them are on triple pole switches, where not all of the switches are for the outside lights? I know I can do the photocell, but it sounds way more complicated and I have no idea how to install this.
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