When producing reports eg., Profit & Loss - un-assigned items are shown within a code, however when you drill down on the un-assigned total - all the items in the original code are listed.  Without going into each entry you are unable ascertain which are un-assigned.  It would be much easier, when clicking on the total, it revealed just the un-assigned items which made up that total.  It would then be extremely easier to view each one and re-assign quickly or on mass.