I am building a custom report and I am wondering if there is a way to get the container associated with an existing report.

The aging vendor report is what I need but I need it by project.   I am setting up a report that will show projects and then show all of the aging vendors associated with each project.  I may be missing something, but I don't see anything built in that covers this need. 

I am working on using intelligence to create a new report, but wondered if there was a simple way to start with what a report is already pulling for data instead of working with everything.

I am new to the intelligence tool so I am very open to and comments or directions on anything I might be missing.

Thanks