What version do you have? You need the 2.0.3.0 version of the evaluation to see the GridGoupingControl. The 1.6.1.8 evaluation version does not have this control.
To get the 2.0.3.0 evaluation, you need to have contacted
[email protected] as explained by this note on the evaluation download page from our website.
"Please note that the evaluation download is of the currently shipping version, 1.6. If you wish to evaluate the latest version of Essential Suite, version 2.0, which includes the new products Essential Chart, Diagram, Grouping and ExcelRW, please contact us at
[email protected]."