Actual Date for BO reports

Hi, we have deployed our BI system and an upper BO layer for reporting. We created some universes based on InfoCubes to test the integration kit, but we cannot figure out how to get an actual date value for filtering while reporting.

Has anyone experienced this before ?

The thing is that if we want to get data for this and last year we cannot do it because the universe cannot be edited in BO and therefore it cannot be calculated.

Any suggestion will be very welcomed !

Regards,

Santiago