[tomsem]

So I wanted to set up my newly updated HD6 so it remains in 'Alexa standby' mode:
- plugged into charger
- enabled Developer Mode so I can turn on Stay Awake (screen won't turn off while charging)
- paired keyboard so I can press its Home button as well as onscreen Home, use media control buttons, etc

So far so good.

A slight problem I was having (and maybe still do) is that the screen locked after a few minutes, and I had to unlock to use Alexa. I changed Display Sleep to 15 seconds (it had been 5 minutes). Now (with Never Sleep enabled) the screen dims after 15 seconds but doesn't seem to lock, even after a number of minutes (cannot explain why this works, but not complaining). In any case, I can unlock with keyboard or screen gestures.