Addition to #1: Profile selection not working:
This seems to be a long standing issue, not resolved (?), see:
https://community.roonlabs.com/t/roon-api-selected-profile-isnt-set-report-is-in/146749/5
Addition to #7 Location and acces to Settings:
It’s still there in Library view:
And “Display settings” haven’t been transferred to RoonController > Settings, just Profile selection.
Having read the above link, I understand why Settings is located in “Library”. This seems to be just the way, Roon has structured this in the API.