G/L Account Line Item Display

Dear SAP people:

I need a report that display "G/L Account Line Item", something like FAGLL03, but with a tool that allows update the items acording a key date of Currency Exchange Rate.

Something similar to transactions

S_ALR_87012186 - customer sales (report RFDUML00)

S_ALR_87012093 - vendor business (report RFKUML00)

The closest I've found is the following report F.54 - Structure account balances (report RFSBWA00), but this updates the balances. I need to update the open items.

Does anyone know of a report to do that or perhaps a transaction?

Thanks a lot for your help.

Greetings

Marco