[IDEA] "Only when idle" option on instant play

[the_bertrum]

m=>Appearance=>Library=>Instant play action and select what you want...probably 'No Action'

But I do want instant play, just not when something is already playing.  "No Action" effectively turns instant play off in all cases even when nothing is playing. I propose the option to instant play only when nothing else is playing so enabling the handy "one tap to play" feature, but protecting against the "accidental replacing of what's currently playing" by-product.