I so glad others are having issues with this. I mainly sell books and a lot of the time I sell bulk books by the same author (6-8 books at a time)  and for the life of me don't understand why there isn't a check box that prevents the need for (publisher, ISBN, book title, date, etc) as these will  be different  with only the author being a constant.  Their system doesn't allow multiple titles,  plus  I usually list the titles in the main body anyway. Just makes listing even harder and more time consuming...