AIR 3 Beta for Mac

[Mr_Bill]

Hi all,
New Devialet 200 user here.
I am trying Air for the first time:
I have installed Air3 on my macbook air
I have also installed a beta version 2.14 on my desktop windows 10 computer

I see the little Air icon, but there is not much in settings and on both units it says 'streaming is disabled' and there is no way to change or toggle this.
I tried selecting the Devialet Air as the output device in my speakers but that didn't help either. I get no music out of the Devialet with either. I really don't know how to stream. I'm trying to stream Tidal or Pandora or a service.
I must be doing something very obviously wrong as a first time user!
Help please!!

(I have configured Air on my Dev 200 SD card.)