I have a lighting system with no neutral and am considering Caseta. I had a play with the system at the weekend am so far looks really promising. 2 questions so far:1 - I have a few 3 way lighting circuits and am a little puzzled as to how to set these up. Would I use 3 x light dimmers, or 1 master and 2 x picos?2 - I want to use 2 button switches for the fans but they have light symbols on them which would be confusing. Can I get these custom engraved with a fan symbol and if so, would it still have the light symbol on it - which would be even more confusing :)