Bring Multi-Room support to AudioPlayer API streaming
Alexa Multi Room streaming does not appear to be available for third party skills that leverage the AudioPlayer API.
Feature request is to extend support for Multi Room to the AudioPlayer interface. This could be implemented by adding a custom slot type for the multi room location and then adding an optional parameter to the Play() command to allow the destination room group to be specified.
This has 37 likes and 19 comments as of Mar 2018 on this URL but doesn't show up on this feature forum - https://forums.developer.amazon.com/idea/101848/bring-multi-room-support-to-audioplayer-api-stream.html - so posting again.

Thank you very much for your patience. Your comments and votes are greatly appreciated. While we cannot promise each feature request will be implemented our team reviews each request and sends them to the appropriate product teams.
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Achim Pauls commented
It's a must!
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Andy Ratnett commented
Please can you add mulit room streaming for 3rd party API's, you know it's the right thing to do.
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stuart mackenzie commented
This is beyond essential
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Michael Bohlen commented
I hope Alexa multiroom API support is added so My Media can use it.
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Keith Greenberg commented
Please add multi room support for 3rd party applications
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BJ commented
Pleeease! add multi-room functionality to allow Alexa to strut her stuff!
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Hervé SOMPROU commented
Please add multi room support for 3rd party api, how do you want people to use you products if you stay closed ?
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Brantome commented
While I agree that multi room music groups should be available for skills, those complaining about the BBC skill should really ask the BBC why they can’t implement their stations as a streaming service like Globalplayer have for their stations which do support multi room. The BBC are really just passing the buck following their poor decision to withdraw from Tunein.
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Stefano Pini commented
Need it, thanks
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John Farquhar commented
Please add the support for multi room streaming for 3rd party API's ASAP!
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allen commented
I have been an Amazon alexa fan from the beginning. I've endured the hiccups and the successes. I have literally over 1000 cds I've purchased over the decades. having an app that lets me leverage my own collection to play where-ever I like would be a great boon for Amazon.
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Geoff Gardner commented
Please add multi room support for third party applications ASAP!!!
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Thomas McColgan commented
Multi-room would encourage greater use of Alexa in many ways - so it would be great if it could be enabled ASAP
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ROMNEY CHARLES commented
Please enable the API for my media for alexa. I have five echos across my home and I couldn't hear my personal music.
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Rick Bywalski commented
I have multiple echo devices being able to have 3rd party applications stream audio to all of them would be great when I am moving around and doing house work.
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Sylvain Mercier commented
Please add multiroom support for 3rd party applications
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Vernie C. Wilson commented
Please add Multi-room support to third party apps such as MyMedia. Multiroom is a large part of why I have any Echo speakers
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Ricardo Dittmer commented
This would make life so much easier for me. Please allow it.
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Mark Young commented
I have 14 Alexa devices, this would be very useful.
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Doyle Niemann commented
Great idea. Really need it.