The Group and Sort Panel displays the grouping and sorting for the report.
See the Controlling Tool Windows topic for information on controlling the location of the Group and Sort Panel.
The buttons in the toolbar allow you to add a group to a report, add a sort order, delete the selected group or sort, or move the selected group or sort up or down in the list. Adding a group adds a group header band for the group.
The list below the toolbar displays the properties for the groupings and sorts for the report, including the name of the field the group or sort is on, the sort order (ascending or descending), and whether there are header and footer bands (if both are turned off, it's a sort; if either or both are turned on, it's a grouping).