Balance LCY

When you look at the properties for the Balance LCY Flowfield it Sums on Detailed Ledger Entries. But when you drill down on the field the form displayed is Ledger entries. How /where / which property is used to display a different file to that defined for the flowfield? Can someone explain this to me please.

Hi Navicons, this code is written on the texbox → drilldown trigger. Cheers