Over 20 echo devices in my home. Over 5 years later, still no solution. I would switch to Google in a heartbeat IF the wake word wasn't "OK GOOGLE" and can't be changed... that's appalling.
It appears that I can now stream to multiple speakers in the assigned group for a ROOM. But I cannot specify a speaker group to play, for example, "everywhere".
So I commend you for the progress but... why did you stop there? Is there a licensing or patent infringement issue? Perhaps you should share that fact with us.
I use Plex to supplement streaming music services... I have hundreds of albums I enjoy that no streaming music service offers.
Thank you!

Make us want to buy more Echos instead of Sonos! Enable multi room streaming for third party developers.

Please enable this for developers I have a huge MP3 collection from CD's I ripped from my DJ days and would be nice to be able to play my playlist all over the house.

I find it interesting that a third party app, such as My Media for Alexa cannot use a multi-room access for playing music, but I can use a multi-room command when accessing music from Pandora. Pandora, to my way of think, is a third party, in cooperation with Amazon, but still a third party.

I believe adding API functionality/features can only enhance my Alexa devices, not take away. NOT allow a third party to created the best possible product should not be the mindset at Amazon. Granted, it will require Amazon to add the API functionality/feature, but isn't having an absolutely great product the goal?

+1

I have seven Alexa devices in my home. It's frustrating that I'm not able to play music throughout my home from smaller skill developers!

I can't believe this is still outstanding>
i realise that failing to provide it gives Amazon a competitive advantage, but how about competing on quality and price??

I'd love to be able to play my podcasts and local music to my Alexa multi-room speaker groups. Thanks.

Considering selling my echoes if this doesnt get fixed

This is a must have. Please add this so i can buy more alexa devices over sonos.

Please add multiroom support for 3rd party Skills. It would make the echo speakers that much more functional.

Please allow multiroom support for 3rd Party Skills.

I have multiple echo devices in my home and it only makes sense to open this API to access all these devices. Thanks

Please add multi-room support. Thank you

What's the point of having 5+ Amazon devices if we cannot use them. And I can no longer play the music that I bought on Amazon, on Alexa. Very bad customer service!

Please allow multiroom support for 3rd Party Skills like "My Media"

PLEASE! I've been waiting years for this. I have over 20 echo devices. I need to be able to do multiroom streaming from my Plex server. I don't want to switch to the G platform which will allow me to do this. Pretty pretty please!!!

Comon Amazon... get this done... This is a simple feature add and should have been a part of the plan to begin with...

Amazon needs to better support the users who want to use the music libraries containing files they bought from Amazon in the first place and which allowed Amazon to survive and grow to the company it is today. Instead, they are treating their long-time, power-user community like a used tissue. The most recent insult was forcing users to pay for Prime Music Unlimited or else be forced into a shuffle of "similar" music when we just want to play a single song. I'll pay for another music service before I will be strong-armed by Amazon in this manner. It's the principle of the thing.

It's hard to believe this isn't already a feature!