Hello Carlos,

If you would like to have every group by row expanded you could handle InitializeGroupByRow event of the UltraGrid and set the Expanded property of any GroupBy row to true like:

    private void ultraGrid1_InitializeGroupByRow(object sender, InitializeGroupByRowEventArgs e)
        {
            e.Row.Expanded = true;
        }

If you have any other questions please feel free to let me know.