A simple method, if there isn't many values, is define a formula field for column's values. Example :
formula1 : Column1 = if {datafield} = "Jones1"} then datafield_value else ""
formula2 : Column2 = if {datafield} = "Jones2"} then datafield_value else ""
formula3 : Column3 = if {datafield} = "Jones3"} then datafield_value else ""
then you must get the maximum (inserting a Grand Total) for this fourmula field, finally you can hide the Detail Section.
MMO.
Mario Muñoz
mmunoz@blgate.cl
Santiago, CHILE