As others have said you dont unless youre a licensed electrician if you care about the law.
Wiring a 2 way switch is about as simple as it gets when it comes to basic house wiring. We look at the eu colour coding wires.
2 Way Switch Circuit Diagram Wiring Diagram
2 Way Lighting Using Fibaro Dimmer Modules
Us Au Nz White 3 Gang 2 Way Tempered Glass Panel Push Button
