One address book entry - two pins

Couldn't find an answer so asking a quick question. My sister and brother in law both have berries. I have them set up as one address book entry with all their numbers etc. Is there a way for me to enter enter both their pins into the address book entry or do I need to set them up as two entries to enter both pins.

There are 4 user defined fields in the address book. You can list the extra pin there. There is even a notes field if you want to enter it there.

ah thanks. Always forget about those fields