Payment Gateway

You can set both Automatic Payment and Manual Payment (Use case: If you want to receive payment through a gateway that isn't listed in the Automatic Payment Gateway) gateway

Automatic Payment

Navigate to Gateway > Payment Gateway > Automatic Payment

After clicking on Edit the page will appear. Fill it out with your credentials

Manual Payment

Navigate to Gateway > Payment Gateway > Manual Payment

If you want to edit an existing Manual Payment method, simply locate the 'edit icon' option on the list page and click on it