First create Create a new MARC record for Inventory
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Click on the blue Add holdings button
Scroll down to Location and select a location from the Permanent dropdown
In the Call number type dropdown, select Other scheme
Type the call number in all caps into the Call number field
Click Save & Close
Add item records
Click on the blue Add item button
Scroll down to Item data and choose Equipment from the Material type dropdown
Scroll down to Loan and availability and select 4 week from the Permanent loan type dropdown
Scroll back up to the top and scan the barcode into the Barcode field
The record will automatically save and close