I know I can shuffle my playlist with Ctrl+H, but it would be nice if that function either only, or could be set to only, shuffled the currently selected tracks.
This would come in handy when dumping a bunch of new songs into the current playlist (such as from another playlist), and you don't want to change the order of the songs which you had already arranged.
Now, I know you could use the queue to prevent the shuffle from affecting the already ordered tracks, but I don't find that as visually appealing.