Calendar Grid View
One of our divisions hosts a convention that runs 150-200 events (sub-events in your parlance?) during a three day period of time. Many of these events are organized into event categories (we call them "event areas") and within each category there may be more than one event happening at the same time. To complicate matters the convention's activities are organized into fixed time blocks which serve to rationalize how attendees and staff allocate their time and facilities. Right now we don't see a very good way of displaying these events by time and event category using the existing views of the event calendar. In general your system could benefit from having a better way of displaying a lot of events that take place in the space of a day.
In our case we have need for a basic grid view that is available for events where the one axis of a grid would be Dates/Times (such as start and end times) and other axis would be event categories. As our attendees and staff need to plan their activities during the convention having such a grid view would be very useful.
Given that it is possible to apply tags to events I am thinking that would be possible to use those tags, in addition to start and end date/times, as the means of defining the axes of such a grid display. The tag could be used to denote an event category, activity track, or a location such as a table or conference room. It also might be possible have nested groupings of axes, such sorting the grid first by event category and then by location. Another issue is how to display events that have the same categorizations so that they will end being displayed within the same grid cell: they could be displayed horizontally or vertically and sorted by some field value or another event tag value. As a final option I could see having the each event itself having a graphical display, such as rectangle that is longer (or wider) because it spans more categories or times; this would provide a user a visual cue as to how to scope out the underlying event.
It would be even better if we could export such a view as a spreadsheet file or into a program like Outlook, so that we could print it out or include it in our convention program.
P.S. I started this topic several days ago but accidentally posted it before I was finished and subsequently tried to delete it. This message is a massively re-edited version of my original post. It would be useful if the delete button on this forum actually worked.