Step 1:
Go to the Item Status screen from the Portal Page, Toolbar or by using the F5 function key
Step 2:
Scan the item barcode into the barcode box. (You could also type it in, or copy and paste it from another screen.)
Step 3:
Under the Actions for Catalogers menu, click on Edit Items/Volumes Per Bib
This opens up the Unified Editor window, which will allow you to edit the call number or any of the Item Attributes.
Step 4:
When you have finished making changes to the item, click on Re-barcode/Update Items
Your change has been saved. (There’s no confirmation message for this.)