Under Payables> Dashboard> Unapproved Items Section and Upcoming Approved Payments
You can approve payments from your dashboard in the Unapproved Items and view those already approved in the Upcoming Approved Payments Sections.
For a closer look at these sections check out these two articles:
Dashboard: Upcoming Approved Payments
You can also view upcoming payments for a specific payee under the payee tab> click on the payee to view the Payee Details page> select the scheduled payments tab underneath the payee information.