All Transactions for same BP

Hi,

Some of my customers are also my vendors. I linked it together in the business partner master data.

Here's what I want to do: For example, I have x customer, x supplier. I want to see customer invoices (A/R), vendor invoices (A/P), cancellations of invoices and payments (incoming & outgoing) of company x in one report.

How will I do this? Is there a standard method? Do I need to write a query?

Thanks!