NSPanel Pro Wiring

I got an NSPanel pro that I had planned to put in where I currently have a 2 way light switch, but now when I opened it I am not sure how to wire this up and if its even possible as I don’t see any neutral wire in there, only 2 live and what I believe is the wires to the other 2 light switches. This diagram seems identical with my set up and the switch in the middle of the diagram is what I have planned to take out, has anyone got any advice if and how this can be done ?