Virtual 3 way switches
I have three doors with switch boxes next to them. One of those doors will have a switch next to it connected to our yard lights, and the other two would be connected to nothing but power. Without running wires between all three of them (since TPLink doesn't have 4 way smart switches) how can I set them up so a press on any of the switches turns the main switch on. The other two would be acting as remotes for the main one.
Is this possible, or do I need all three hooked up to something?