Filter in Streams page for PO and Non-PO Invoices

Summary:

Our scenario is that there will be times where users will submit invoices in bulk of different suppliers, regardless of whether it is PO or Non-PO.

As far as filters go, there doesn't seem to be a faster way to pinpoint which is which- users would have to go in the View Training and review the invoice documents one by one.

Is there a way to filter PO and NON-PO Invoice Documents when monitoring the stream on incoming invoices?

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