3-way switches are most commonly used on stairs and hallways. A 3-way with a motion sensor (dimmer optional) would be be of use in turning off lights.

Is there a timer function with the 3-way KS230? I would like to turn the light off after a few minutes.

Just how do I upgrade firmware? I see web version, s/w utility etc. But not one single diagram of just where the software or browser resides Does that require a laptop connected to the specific powerl