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.

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patrick h murphy commented
Please let My Media have a way to play to groups.
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Randy Mazura commented
I thought it was me that was not setting it up correctly. Good it was not me but BAD that it is not yet possible!
It seems to be something we all expect!
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Keith Boyd commented
Come on Amazon, this should be a simple thing for you to provide. It's a nightmare not being able to play my own music collection on my multiple Echos at the same time.
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Lee Speers commented
Any update from the admins on this?
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John Mottershead commented
Please add multi-room and group support. I would buy a device for each room if I could use this feature.
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Mark Klingelhoefer commented
Multi-room Audio would make this app my favorite. Please enable this feature. It's ridiculous that I can use it with Spotify, but not my private collection.
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Sensel commented
This feature cannot come soon enough. What is delaying it?!
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Mark B Rosher commented
This would be really useful, pretty please. I was trying to parse a voice command to do this before reading it wasn't yet implemented.
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Tracy Whitt commented
Yes, please add since the service to use amazon was removed.
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Michael S. Merrick commented
Feature request to extend support for Multi Room to the AudioPlayer interface-- especially mymedia for alexa app. Thank you.
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Langguth, Mark commented
Mulit-room and steroe pair support for third party audio skills are really essential
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Ruben Suarez commented
Multi-room ill be a great feature for the audio skills.
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Ken Mills commented
Please add 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.
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William E Betterly commented
It's such a great feature. Why wouldn't it be supported in the API?
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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