I have two porch lanterns ( sgl pole sw #1) and one foyer ceiling light (slg pole sw #2) in an existing two gang box, but I'm not sure how to use some existing old black pipes for my new wiring.
One porch fixture has a direct pipe from the box, so it easily gets its own black and white. But the other porch light (which I want to switch together with the first)...its pipe is branched off the foyer light's electrical box. Can my second porch light share the foyer light's neutral, or should I bring it its own neutral ? I do already have the second light's hot coming through the foyer box.