How to apply "Group By" to query

Dear All,

We are using BI 4.1 IDT. I have one aggregated column (with listagg function) so I want to apply a group by on my report query.

I unchecked the "Retrieve Duplicate Records" option in report level. In the dfx parameters, i manually added DISTINCT_VALUES = DISTINCT.

Then regenerated the report query and also tried creating a new query. After all these, "Group By" is not coming in the report query.

Could anybody suggest any option to to enable group by in the query?

Thanks,

Murugan S