How do the 12 inputs of the set up page link to the source buttons of an MSR+?

Are they 1:1?

Sooloos, Roon, G series (with LPS upgrade), 800 series (with LPS upgrade), HD621, AC200, Prime and PS, DSPs old and new.

Purdeys, Moke, Leica, 'Blad. Only the best.