As a provider I want to configure a payment method (e.g. like Check/Cash) to be available only in the provider's control panel, the customers in the CCP shall not be able to create payments with this method. Release notes confirm such feature in PBA 5.5.
Uncheck an option
Enabled in the payment system settings:
http://download.pa.parallels.com/pba/5.5/doc/13206.htm. Note that the payments created with this method will be still be visible in the list of payments in the customers control panel.