How do I search for my Invoices by the Customer PO number in new QuickBooks Online?

From the home page screen

• Select “Search Transactions” icon (magnifying glass, top middle screen)
• Select “Advanced Search”
• Search = Invoices
• Change “Customers” default to “Custom Field” assigned for Customer PO Number (It could be Field 1 or Field 2 or Field 3)
• Select “Search” button

How do I search for my Invoices by the Customer PO number in new QuickBooks Online