operation of cdj

Please tell me how I can go from shuffle playing the result of a search to an
all disc shuffle play. In other words, say I first shuffle played using kw=jazz results, then later wanted to do a general shuffle play w/ all discs. Even after deleting playlist and clearing search field, only jazz tracks

would be used. I had to exit CDJ completely to change play modes. Is there a way to get back to

using the whole library for selections? A way to "clear" play mode.

Secondly, is there a way to prevent power on my cd player from turning back on from slinke when I turn it off

on the player?