Category folders within events
The ability to group certain categories into a folder in the event. For example, in a wedding have a details folder with the categories "food", "attire", and "setting", another folder for events that has "first dance", "cake cutting", and "bouquet toss" in it. It's really crucial for doing school photography. Being able to have one event for the whole school, then folders for each class, and a category for each student. As it is, I'll have to create a new event for each class which is a pain in the you-know-what, and not really feasible with my current plan (limit to 40 events)