Hi Luciana
about your question i used the following script:
*XDIM_MEMBERSET ESTRUCTURA = CBP_EJ01
*XDIM_MEMBERSET ENTIDAD = DGSM
*XDIM_MEMBERSET VERSION = Real
*XDIM_MEMBERSET TIEMPO = %TIEMPO_SET%
*XDIM_MEMBERSET CONCEPTO= C2,C3,C4
*XDIM_MEMBERSET FUENTE= Input
*XDIM_MEMBERSET RPTMONEDA= LC
*XDIM_MEMBERSET CENTRALIZADO= AR
*XDIM_MEMBERSET MATERIALES= MRG_0000101
[#CM_005]=IIF([CONCEPTO].[C2]>[CONCEPTO].[C3],[CONCEPTO].[C2],[CONCEPTO].[C3])
*COMMIT
*XDIM_MEMBERSET ESTRUCTURA = CBP_EJ01
*XDIM_MEMBERSET ENTIDAD = DGSM
*XDIM_MEMBERSET VERSION = Real
*XDIM_MEMBERSET TIEMPO = %TIEMPO_SET%
*XDIM_MEMBERSET CONCEPTO= C2,C3,C4
*XDIM_MEMBERSET FUENTE= Input
*XDIM_MEMBERSET RPTMONEDA= LC
*XDIM_MEMBERSET CENTRALIZADO= AR
*XDIM_MEMBERSET MATERIALES= MRG_0000101
[#CM_005]=IIF([CONCEPTO].[CM_005]>[CONCEPTO].[C4],[CONCEPTO].[CM_005],[CONCEPTO].[C4])
*COMMIT
Good luck!!