Hello Carlos,

Yes, this is possible.

You could hook to the InitializeLayout event of the WinGrid and choose the merge style for a particular column, like this:

        private void ultraGrid1_InitializeLayout(object sender, Infragistics.Win.UltraWinGrid.InitializeLayoutEventArgs e)
        {
            e.Layout.Bands[0].Columns[1].MergedCellStyle = Infragistics.Win.UltraWinGrid.MergedCellStyle.Always;            
        }

Please do not hesitate to contact me if you need any additional assistance.