is there similar Fiori App to view list of unreleased POs in flexible workflow similar to tcode ME28

Dear experts,

  successful S/4 Hana, the caller conception Flexible Workflow is present disposable for Purchase Orders.

  My question is:

  Instead of My Inbox, is determination a Fiori app which tin supply the database of unreleased POs? similar aged tcode ME28.

Regards,

Zhao