I can only find
https://wiki.jriver.com/index.php/Car_RadioI now see that my confusion is because I had the Car Radio feature turned off which mean the buttons in the playing now view were not available. It's a bit odd that the Car Radio playlist group was still available in this case. It would be worth surfacing that (whether the feature is on or off) on screen.
Now I can see how you can associate a button with an existing playlist however using that option breaks the rendering of the buttons, see attached pic. The n buttons are replaced with a single button named 1000 and it's not possible to access the other buttons. If I right click it on the car radio button and click reset then nothing happens. I then have to right click and reselect "show x buttons" and then the buttons are back to normal.
The net radio stream is not supported no matter how I add it btw. My existing library item is created from File/Open URL and then add to library from there. I can send playing now to the button and it still doesn't work. MC itself (or jremote) plays it back just fine.
Some feedback on it in operation;
- the playlist names invariably don't fit in the box and the text isn't scaling to fit, I think you should allow a picture to be associated with a playlist instead of showing text
- you lose the ability to change track/volume/ff/rew once the width is <768px (bootstrap xs?)
- the upcoming list isn't clickable so you can't jump to a track of your choice
- the upcoming list isn't scrollable (back or forwards)
- the upcoming list isn't searchable (so basically the upcoming list feels like a playlist that has lost nearly all useful functionality)
- the volume slider seems to have quite non linear behaviour, at least on this PC (using chrome) most of the travel does not much and it's just a section on the left (maybe the leftmost 10% or so) where it does anything (i.e. it's closer to a mute button)
- direct URL access (or hitting refresh) isn't working (so I guess the js router isn't configured properly), e.g. if I hit
http://myserver:52199/WebPlayer/playing directly then I get a white screen
- the zone selector feels completely out of place for an app which is meant to be a simple browser interface for playing on that device, IMV you should remove it
- I see numerous 500 errors on calls like MCWS/v1/File/GetImage?File=-1&Type=Thumbnail&Format=jpg just from opening the screen, not sure what it is requesting a thumbnail of (file=-1 seems odd)
FWIW I can see the utility in this for someone like my wife however I strongly suspect she will immediately want to play something not in the list. To that end, I think you should add a search bar so you can simply search for random library content and play it (so effectively a dynamic playlist populated by the search).