How do I control which devices sync with Alexa? I know that I was able to do this in prior versions of the Alexa skill and the Smartthings app. Is this still possible? Thank you!
Currently not possible, disable them on the Alexa side.
Theres a feature request in to change it thats been accepted but ST devs say it will take quite a bit of work (no ETA) to change due to underlying security model. So this will come sometime in the future but we don’t know when…