On Lamannia, the new quest and explorer zone interface had a handy little reset button so you didn't have to waste time breaking group and reforming every time you wanted to do a reset after a failed run, bad difficulty selection, or finished slayer run.
Bring that button to Live. There is no reason why such a reset button shouldn't be implemented on Live, and it would remove all the hassle for people farming S/E/R or after a screwed up difficulty selection.