PayPal Pro payment gateway has the following parameters:
ID– Payment gateway ID, it is the system parameter;
Caption – the name of the payment gateway that will be visible for users.
Active - status of the Payment Gateway;
PayPal Pro User name – enter the User name which you use for your PayPal Pro account;
PayPal Pro password – enter the password which you use for your PayPal Pro account;
PayPal Pro User signature – enter the PayPal Pro User signature;
PayPal Pro Sandbox – check this box to enable the PayPal Pro test account;
https- enable this option if you want the payment pages to be processed through SSL certificate;
Country - select the country your PayPal Pro account is registered in.
For more information about this gateway go to http://www.paypal.com/