How to pass the data selection from a Parent report to Child report?

Hi Team,

I have a requirement, where i have to call a child report from a Parent report(Wrapper UBE). I'm using the below function to call the child report. Now we have a got a new requirement where, we should be able to pass the data selection from the Parent report(Wrapper UBE) to the calling report(Child Report). Basically the child report should run with the data selection(External) of Parent report. Please let me know how can we achieve this? Is there any standard Business function through which we can achieve this?

Thanks & Regards,

Terry