On November 25, 2018 at 11:46, highfigh said...
If you have an occupancy sensor (or two of them), why do you need three way switching? Assuming the sensors are to avoid the need to manually turn the lights on (and this is the reason I installed a motion sensor switch in the laundry area of my house), the sensors will do what you need without requiring the more complex wiring. You could rewire at one end to eliminate the switch.
Probably a big area with entrances from multiple points.