I’d like to request that the designers take another look at the home screen on the app and combine Sources and Services into one horizontally scrollable list. To me the Services are all just music sources and its such a waste of screen space to see Music Library and Line In (when it shows up!)  shown on their own. 

I would like to suggest that you combine these into one line and then use the space created to have the system component list expanded as small horizontally scrollable list of icons to select / control your component(s).  

The rationale for this is that the very first thing i want to do is select the speaker(s) I want to control.