Hi

With regard to picking speakers and controlling volume, if you select the window at the bottom of the screen that shows what is playing, it will expand that window to full screen.  At the bottom of that window, you will see the device that is outputting the audio.  Selecting that device, opens a window where you can select the devices to group and control the volume of individual speakers.  I hope that helps.

All of my services came across, which ones are you missing?

When I expand to the full screen, i do see all speakers and the music output, but it shows music playing from speakers not selected and then doesn’t recognize/change when I switch speakers or outputs.   Three different apple devices (ipad and 2 iphones) have this happen, so the family has resorted to using my phone with the old app. 

For music services, i have authorized Spotify, Pandora and Sirius/XM, but they app doesn’t keep them on the home screen as options for music inputs.   When I reload/reauthorize, nothing changes.