Incrementing Date Parameters

Hello there,

When creating BI Publisher reports this is a known parameter value {$SYSDATE()$} - if you enter this, it will launch the report each time with current date as the parameter. Also this works just fine {$FIRST_DAY_OF_MONTH()$} - first day of the current month; but is there a way to set a parameter to always use the first day of PREVIOUS month as start date and last day of PREVIOUS month as the end date please?

THanks Alica