I am new to X-10. I have several lamp modules and I want to expand my use to lighting scenes with a Pronto remote control. I am reading about "2 way" wall switches.

Does "2 way" mean:
- they go in place of current 2 way wall switches, or
- it goes in place of a current regular wall switch but with this device, it will work at the switch or with an X-10 remote control, or
- both?

What I am hoping to find is a wall switch that can operate a light as well as having the light contolled remotely using X-10.

Thanks for your help
Ray