Before you can group records by using the Group Panel, you must make it visible.
To show or hide the Group Panel, do either of the following:
Click View > Group by Box on the
Right-click anywhere in the grid, and then click Group > Group by Box.
Click the Group by Box icon on the Standard Toolbar.
This action will show the Group Panel above the grid (if it is not displayed) or hide it otherwise.
NOTE: Alternatively, you can make the Group Panel visible by configuring options in the Customize View window: Click View > Customize Views and select the Group by Box check box on the Options tab.