Yes, it is possible for you to use multi-room mode while streaming audio from Apple Music. Please follow the instructions below:
1. On your iOS device go to the page where your current song is playing and select the Airplay icon located at the bottom of the screen.
2. Select the Cobblestone to where you want to stream your music to.
3. Go to the MUZO Player app to the "Device List" page. To use multi-room mode, drag a Cobblestone into another Cobblestone. Please refer to this article on multi-room feature.
(This image shows that the Cobblestones are in multi-room feature.)
Please note: When you use multi mode, the Cobblestone(s) will be setup up the same way as the Cobblestone you chose to drag it into.