I have had this option on another genie application and find it extremely useful.
Example: Family Group Reports for architects, builders, artists and other professions
I've added chronological events for an architect for every building he designed. Images of the buildings were tagged to the each event. The Family Group Report then showed a chronological report with images of all of his building designs.
These reports were then used as appendices to official reports for Heritage Studies or Conservation Management Plans.
An extremely useful visual report.