I have a couple of receivers and speakers that default in Homekit to just a couple of switches. I'd like to be able to expose more info like volume and source control. What is the best way to do this kind of thing? I think for the speakers I would have to customize in the config that they are now receivers in order to select sources, but with the actual Denon/Yamaha receivers, shouldn't that already be possible? I'm assuming I'm missing something. If I'm using just the default Homekit UI do I need to add an actual Homekit.yaml file and start getting specific or is there a way to do it in the UI?