Supplier Item Price Revisions

When trying to pull up a particular Supplier/Item Price to expire one prices and add a new.  When we select the line item to revise and select the row exit for Revisons the program pulls all items up in on the next form not the one you  select.  The items are in no particular order so if you have 1000 items for the Supplier and Branch you have to try and find that one item you have to go through starting at 1 until you can visually see the item you need to change or revise.  The program does not