Hi there, sale.

For now, we're unable to edit or create another template for Purchase Orders in QuickBooks Online. We can only create templates for these following transactions:

• Invoice 
• Estimate
• Sales Receipt

Let me also share these PO-related reports in case you might need them in your future tasks:

• Copy an estimate to a purchase order
• How to run purchase order reports

The Community is always here if you need anything else.