Ability to hide select Purchase Order in Supplier Portal

Summary:

Ability to hide select Purchase Order in Supplier Portal

Content (required):

We have a scenario where the client has two types of PO (1) Standard Purchase Order and (2) Pseudo PO. Pseudo PO is a type of PO where it serves as an internal PO only, a copy will not be sent to the Supplier. However, the Suppliers will be given an access to Supplier Portal and they will be able to see / view the Purchase Order. The client do not want the suppliers to view the Pseudo PO in Supplier Portal. There should be an option where a Pesudo PO is hidden from the Supplier Portal. Is there