@Akealey, That's a great question. Once you have established automatic payments for your loan, there is no self-service option online to adjust your payments. However, you can also set up automatic principal payments by completing a payment authorization form. To get the form, follow these steps:
Go to your My Tools tab, and under the Documents & Forms heading, select "Get Forms."
Under Banking, select "Loans."
Select the "Set Up Recurring Payments to the Principal Amount of Loan" form.