So a mirror switch will switch ON with 1st "swipe" and OFF on 2nd "swipe". I want to set it up in a 2-way configuration whereby if you pass switch 1 it's ON and then pass switch 2 it's OFF, then pass switch 2 again and it's ON again and so on much like a 2-way lighting circuit. I assume the sensor needs to be a 2-way or can i do this with a 1-way sensor? anyone know anything like this?
Figure 1. General schematic of a solution.
Adding a single-pole changeover relay to each switch will make it work like 2-way stair lighting switches.
Note that we have no idea what your switches are, what they are capable of switching and whether they would work properly without the original lighting load.