This module integrates CS-Cart with "Modulkassa" online cashbox. It is not payment method - it just sends receipts to KKM.
Unforunately modulkassa can't give us permanent test access, so u can check video at the video tab.
After the module is installed open necessary payment method and fill up Modulkassa settings
For the next step u need programming experience. U need to add the following line
to the payment processor where payment is successfully finished. Below is Robokassa example