WebPT Ideas and Discovery

I have a patient who has a Major medical case for one body part and Workers Comp case for a different body part.  He has a different referring physician for the 2 cases.  There is only an area to have ONE referring physician and it is not case-specific.  It would be very helpful if I could link one referring physician to one case and the other physician to the other case.  The is very important because the referring physician's information populates on the bill.  We will get denials if the incorrect provider is on the bill.  It is very inconvenient to change the physician every time I need to send out a bill.