What does the 'expand' tool do in report output features?

The 'expand' tool in report output features is designed to open additional views of grouped data. When utilizing this tool, users can delve deeper into summarized data segments within reports, allowing for a more detailed examination of the records that fall under a specific group. This capability enhances the analytical process by enabling users to see underlying details that inform trends and insights without cluttering the initial report view. It is particularly useful for those analyzing hierarchical relationships or performance metrics, as it provides quick access to more granular data without navigating away from the main report.

The other options reflect functionalities that are not the primary focus of the 'expand' tool. For example, while increasing the number of records shown or collapsing sections may relate to report navigation, they are distinct actions that do not provide the same depth of analysis found in expanding to view grouped data. Modifying report parameters, similar to collapsing unwanted sections, pertains to data manipulation rather than revealing further insights within the existing report structure.