Return to the radio buttons we added to the ContactInformationTemplate in Ex:FamilyRadioButton to display the contact information of a family member of the contact. As written in the answer of that exercise, it is in need of a qualify macro so that if multiple contacts are open, they can have different family members selected at once. Add this macro call. (If you wrote your version in a way that doesn't require qualification to work correctly with multiple contacts open, first modify it to store the selected contact in a temp tiddler like the book's version does.)