Upon installation of Payment Center, all supported processors are created. You simply then pick your processor and plugin your API credentials. Sometimes though you may want to add more processors, such as when you need to setup another processor for your other company or business entity, or Payment Center have just integrated with another processor and you want to use that instead.
To add a new processor, follow the steps below:
Go to Payment Center Settings, under Payment Processors click New (if you don’t see the New button, edit your layout to add the button):
Select a processor from the dropdown and enter a name for your processor.
Enter your processor credentials and hit Save.
For more details on entering your credentials, please see here.