Custom Field for PO

Under Settings. Invoice design / Purchase order details / Add Field. Gives you an option to add Custom Field 1-4
But under Settings. Custom Fields there is nowhere to make custom fields for PO’s.
Am I not understanding this feature correctly?
I want to add a custom field “Pay Date” with a date picker in the area were the
PO #, PO date and Due Date are. Is this possible?

Hi There,

The custom fields for invoices/quotes/credits and purchase orders are all shared.

So you would want to insert your custom field in the invoice custom field section.

Thank you David.
That worked perfectly.