Live Background (source)

New to Aeon Nox Silvo been using Xonfluence previously.
But so far so good, I’m quite liking what this skin has to offer.

The main issue I have currently…..
I have several sources for my media, all set up as separate selections on the home sceen.
There is the option to set the background to  “live background (source)” and it list one of my sources.

I’d like to add “live background (source)” to each of my media sources
but the problem is it only list one of the sources, I cannot figure out how to add the rest.

Is this by design or am i missing something obvious