Ask HN: Alexa move what is playing in kitchen to

Am I missing a bit of syntax? I can "play" on a "whole....group" but I am wondering what or if, I can "Move a stream across and/or to other devices"?

Eg. Alexa move "what is playing" on kitchen to bedroom;

Thanks, I have found that using echo devices has enabled me, but I am still having difficulty learning the intricately.