The Pay Multiple Vendors screen allows you to pay many different vendors simultaneously.
The bottom side of the form shows you a single entry for each vendor you owe, and the amount owed. If you do not want to pay anything to a Vendor, just leave the box on the left unchecked and nothing will be paid. To make partial payments, click the box on the left and modify the amount you want to pay.
Once you select what vendors to pay and how much, click the Update button.