Step 1: Select Add Bank
Once your gateway request is submitted, navigate back to the Payment Gateways page and select add bank.
Step 2: Enter Banking Details
Input your Account and Routing Number in the window that opens. Select create. 
What else do you need help with?
How do I request a Bonterra Payments Gateway?
How do I create a gateway for Bonterra Payments?
How do I access reports for Bonterra Payments?