If a hold was not picked up within the parameters of ReservesMaxPickUpDelay, it would be a great enhancement if staff had an option to reactive that canceled hold for the patron and place them back on the holds list.
+1! It would also be helpful when holds are accidentally canceled by staff. For that circumstance, the ability to reactivate the hold with the original hold placed date (and thus place in the queue) would be helpful for many libraries.