Hey @Jay_Kaufman – right now our mobile interface has a reduced feature set compared to the “full” interface we display on tablet and desktop, and neither Focus nor editing features are included.
Most tablets will display the full interface (with both pieces of functionality) but that will depend on the resolution and scale factor the device uses. Some smaller tablets don’t present enough resolution for us to display the full interface, and in those cases you’ll see the phone interface there as well.
With regards to Focus, note that you can always save a bookmark on the desktop or tablet version of Roon, which will make the Focus you set up available for browsing on devices that run our mobile app.
Hope that helps!