I currently have two lights in my porch at either end that are both controlled by separate 3 way switch circuits. At the middle door it a double box with the supply and two 3-way switches, from each switch is a 14-3 wire to another box on opposite ends of the porch with another 3-way switch. From those switches is a 14-2 to each individual light.
How would I go about only having 3 switches and turning both lights on at the same time, or in other words i want to tie the two lights together and be able to turn them on/off from any one of 3 switches. I can easily go into the attic and add a wire between the two lights, adding a wire between boxes gets into drywall work.
Similar to the image but the light would have to be off either one of the 3-way switches in the diagram.