I have four circuits going to four heat lamps that are GFCIs. I have to put them on switches so they can be controlled by Alexa. They all have neutrals. I’m running 1/2 flex eight wires hot/traveler. Do I have to have four neutrals? How do I land switch neutrals. Don’t they have to be on the neutral of the circuit they are controlling and you can’t have two neutrals under one screw. Do I pig tail neutrals in panel and add tail to screw.