Done some more investigation myself.
So it seems that on/off plugs and lights virtual devices will work and are displayed within Alexa Smart Home Homey skill. But other VD devices such as TV, Blinds, Buttons, Virtual Modes or Multi Modes, do not.
You are right, this seems to be Homey related, as we have added Somfy RTS blinds to Homey and these do not show within Alexa either.
I’ll get in contact with Homey again and find out why or how you can add functionality for, Especially for AV (tv and receiver) and Blind support with Alexa. Blind (window coverings) support is essential for us.
Thanks Arie for you quick response.
ps if you havent tried using an Amazon Alexa you really should. A couple of these thoughout a home are amazing for voice control, intercom solution and mulitroom music control (Spotify premium account needed)