cognos drill through

[sshan]

Hi gurus,
Need some hlep from you.

My requiremnt is as such, I have a  report already created in RS using Cube (its a crosstab), Now i want to add new functionalities to the report.i,e add drill throughs .I want to create a  drill thorugh reports for singleton created using a tabular sql and  it as to be drill through for each month ex: if i select jan and feb in the report page , it as to be drill through  for a  month and give me detailed data on each  month.I have month ,product parameter  in the report.
for ex: if i select jan,feb , march in the source report, its should be drilled with the target report to get detailed data on each  month ..........

appreciate ur hlep