1. In the administration panel, go to Administration > Payment methods.
2. Click the + button on the left.
3. Enter 2Checkout into the Name text input field, select 2Checkout in the Processor drop-down select box, enter necessary description or surcharge values into the appropriate input fields, upload an image if needed.
4. Open the Configure tab in the same window in order to view the 2Checkout settings section.
5. Follow the instruction at the top of the page.
6. Fill in the following fields:
   • Account number - your 2Checkout account number.
   • Secret word - your Secret word that you have set at the previous step.
   • Test/Live mode - set it to Test while testing the credit card processing through this payment gateway.
7. Click the Create button to save the changes.