How to pass dynamic filters to a report definition. 

I have an RD with several columns and based on my requirement i can as well save as the rd (put when condition in data page) and add my filters. But whenever i add a column or do a join, i have to do that on all RD's.

I'm looking for some way to dynamically pass the RD filters and then call the PXRETRIEVEREPORTDATA.

optional parameters does not do the job for me. There are several other things that i need to do with filters.