Thanks Atilla, is only display mode.
I try to concatenate Amount and currency in column type SAPbouiCOM.BoFieldsType.ft_AlphaNumeric and it's ok but the problem is when I set col.ColumnSetting.SumType = SAPbouiCOM.BoColumnSumType.bst_Auto the total-cell does not appear.
I could solve by entering a new text field outside the grid ( bottom column ) but I would like to know if there is a correct way (for example you can see the grid of purchase-analysis).
Thanks