For those who are interested in UK momentary light switches for Fibaro modules these ones from MK work well. Just put two on the 2 way stair switches.
It does have ‘PRESS’ on it and a MK Logo but they are nice and neat - See [b]here from EBay [url=http://www.ebay.co.uk/itm/MK-White-Slimline-Door-Bell-PRESS-Momentary-Switch-10-amp-/271327041055]http://www.ebay.co.uk/itm/MK-White-Slimline-Door-Bell-PRESS-Momentary-Switch-10-amp-/271327041055[/url][/b] where I got mine. I have no connection with them of course, just thought it might be useful to someone!
Cheers