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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B Hood commented
Since Amazon is killing their online music storage service they should give us the ability to play our music that is stored locally with all the same features.
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Jennifer Della'Zanna commented
Yes, Please
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Keith Bruce Clark commented
Multiroom and stereo pair support for third party Alexa audio and music skills will make me purchase more Echo's for my house - I'm sure this is true for many other users.
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Ralph S. Crongeyer commented
Adding this feature for the API would be great as I could them stream my music library to multiple rooms. Please add multi room groups through the API.
Thanks,
Ralph -
George Craven Jr. commented
Yes, My Media...... Since the My Music at Amazon was discontinued, I need to be able to play my own music library on my Echo dots. I have 5 Dots, gen 2 & 3 mixed, and they are throughout my home, garage and patio.
I need to be able to use the Everywhere group.... PLEASE allow this!
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Andrew Steele commented
Mulit-room and steroe pair support for third party audio skills are really essential
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Sensel commented
Multi Room and Stereo support for Echo devices is badly needed for My Media, etc. so customers can play digital music they bought on Amazon and Apple and from CDs they converted to AAC, mp3, and ALAC that they also bought on Amazon since 1990s or… before that, from record stores like Tower…
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Jon Lean commented
Since the removal of the ability to upload my own music to Amazon music it has become impossible to play some music I own on CD on my stereo pair of Echos. For an audio-centric device this seems crazy! This feature would at least allow me to play this music in stereo from the MyMedia skill.
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Marek Malinowski commented
There is always something to stop you from getting full satisfaction. I believed Echo universe would conquer all. But no.On Amazon Echos - Apple Music limited to US only. Deezer no personal playlist. Synology Audio Station and others external - no multiroom, no paired speakers. We are still under power of corporate FF&Cs (Fat Face and Cigar). They destroyed net music market, they destroyed net video market, now they are on the way to destroy personal assistant market.
Fine Amazon, just give us multiroom and paired speakers so maybe we will believe in you and Alexa. -
Carlos Andres Varela commented
Multi-room support and paired speaker stereo support for 3rd party skills such as My Media or plex
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Thomas Reavey commented
I NEED this to replace my AirPlay devices!
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Annabel Hurdman commented
This would be a brilliant feature - I would then buy more Echos!
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Dennis P Harper commented
Multi-room support and paired speaker stereo support for 3rd party skills such as My Media would be very useful. This would probably encourage my purchase of more Echo devices. Thank you.
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Mark Carter commented
Would be a great feature !!!
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Rajendra Mandalia commented
Please make this available to third-party developers, doesn't make sense why it wasn't from the get-go! Thanks.
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Denis de Bellefeuille commented
This skill would be great
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James Douglas commented
Also the ability to play to a stereo pair!
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Aren Breur commented
I also want multi-room support for My Media for Alexa skill, please!
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Joachim Rummler commented
As another person with 6 Echo's i feel this should be available to 3rd party developers as well, here my media after amzon music stopped! Should also be possible in Routines
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Benny Buice commented
Yes, please add this feature.