Hi Liz

The Display Knowledge Articles formatter that you referred to is actually the section in the fulfillment instructions tab that displays knowledge articles that the admin has attached to the service used to create the case with.   These are set knowledge articles defined by the admin specific to that type of service.

I believe the formatter that you are referring to is the Contextual Search Results.   If you are looking to limit the results displayed, it's managed in the Contextual Search > Table Configuration menu.   From there you will click the applicable table (HR Case or any of the extended COE tables).   The configuration page for that table will have a Limit field that allows you to set the return limit for that specific table.   If you want this on all of your tables, you'll have to update the value on each COE table as well.

In addition, you can navigate to Contextual Search > Properties to set the "Collapse the search results widget when opening an existing record on a form" setting if you want this section closed by default.

Kiel