Family function key issue

Today we had a patient who is linked as a "child" in the family function, however she is in her mid-30s and is responsible for her own bills etc. So she has been into the clinic, paid her invoice, and the invoice is now addressed to her Mother "Family Organiser".

Unfortunately, this is not an uncommon scenario with our patient base. We have plenty of large families where there are dependent children and grown-up's in the same family. There should be a drop down menu available at the time of creating an invoice to select who the invoice is being billed to.

Our primary use of the family function is to associate family members and make them easily identifiable within CP. If a member comes in, we can click the family tab and know their parent's/siblings names without needing to go into any of the notes/alerts.

CJ and Nan have said this is a function that has been requested in the past, but nothing has been developed to date.