I thought there was a bug for this - so I'm sorry if this is a duplicate. When ordering you can't enter text in the qty box you have to hit the plus sign. For big libraries that order 150 copies of a book this is unwieldy. You should be able to type 150 in the qty box to generate the 150 items. The items should just be duplicates of the first one.
*** This bug has been marked as a duplicate of bug 1966 ***