What is the way to find data source while creating any suggestion group?

Hi,

Under Setup and Maintenance, for task Manage Global Search Configurations -> Oracle HCM Cloud Default Global Search Configuration -> Edit -> Manage Suggestion Groups, we are trying to create a new suggestion group apart from the default option as in the screenshot

We are trying to create a suggestion group specifically for Helpdesk search through Global Search Bar option; upon creating a suggestion group, for example for module - Knowledge Management, we are unable to deduce the Data Source for a specific module, as attached in the screenshot below:

Is there any method through which we can deduce the Data Source for a particular module while creating suggestion group?