Restriction by key fig

Hi ,

I am creating a report in which as if now i m restricting a quantity(key field) with Statistical key fig and 0calday where 0calday let say for april month is an interval 01.04.2008-30.04.2008 but there is a requirement there is one more key figure End date lets say = 20.04.2008 now i want to restrict the say quanity with statistical key fig and 0Calday with value 21.04.2008-30.04.2008 is it possible to do so.. if so plz let me know , hlep will be appreciated .

PresentScenario

0quantity 0skf 0calday

OP009 01.04.2008-30.04.2008

New scenario

0quantity 0skf 0calday

OP009 21.04.2008-30.04.2008

where 0calday has been calculated according to the End date key fig... whatever is the end date value shud be from next day to end of the month

Thanks