Is it possible to apply 2 types of Rank in a single Report

Hi All,

I have 4 dimensions i.e "Month-Year", "Group-code", "Complaint-No", "ModelFamily" and 1 measure i.e "Incident-No"

i want to display the top 20 "Complaint-No" for each model "Group-code" and for each "Month-Year" again in the same report i need to show the Top 1 "ModelFamily" in each "Complaint-No" against the measure "Incident-No". Is it possible to apply two ranks????

Note: My Database is OLAP(SAP BW).

         Bobj 3.1 sp3