Thanks Rich
I knew I could count on you 
I didn’t want to do down KNX, but you are absolutely spot on. There are posts that pose questions about KNX (as an example), which is why I like Velbus so much
As Kim said in an email recently (which echos previous comments from customers) “Velbus just works”.
@Senne posted a similar sentiment on their topic recently.
@rlkoshak I’m guessing you don’t want a full on illuminated staircase ? 