I can no longer find this. It was there a couple months ago when I last synced my shufflle. I was about to autofill it once again to give it a fresh list of songs but the function is no longer there. The autofill setting used to be visible when selecting the music tab on the shuffle in iTunes in the bottom pane. It is no longer there. Has this feature been removed? There is a support article on Apple's site that describes autofill on the 3rd and 4th generation ipods. It doesn't tell me anything I don't already know. The feature simply isn't there. The article is dated November 2011. Is it possible this was removed in the most recent version of iTunes?