Customize Cust Aging Report with dimension filter

Hi guys,

I have a business requirement which need to customize the Cust Aging report to get it filtered by a dimension value.

I have already duplicate Cust Aging report, DP class, Contract Class, Controller class and UI builder class.

For now it’s working like the standard report.

Then, I will add a new field on dialogue page with lookup made on some dimensions values.

My question is how to get this report filtered by that dimension value and get the calculation working on it ?