The Advanced Pre-Payment Processing Filtering feature allows you to select certain Client(s), Campaign(s), and or Product Group(s); to move to the next step of processing. In previous versions of OLCC, the options were to either move Sales Only, Credits Only, or All items; but with this feature you can choose to narrow that down further by choosing only orders for certain selections.
Navigate to Processing>Payment Processing>Pre-Payment Processing.
When you have made all appropriate selections, click the "Run Pre-Payment processing" button, which will then move all appropriate items to the next status eligible.