Annual calendar view user control & validation

Hi, I need an annual calendar view for a user control. This will be used to plan workshops for a given year. Workshops are at a given location and have n number of trainers. Here are the user stories - I can provide a lot of detail: As an annual calendar planner user, I would like to be able to view a full year calendar on a single page. As an annual calendar planner user, I would like to be able to scroll and zoom the full year view. As an annual calendar planner user, I would like to be able to scroll through years with the weekends marked in each month. As an annual calendar planner user, I would like to be able to enter holidays / events for display on the calendar view. As an annual calendar planner user, I would like to be able add workshops (events) to the annual calendar view. As an annual calendar planner user, I would like to be able to add start date, end date, location, trainers and notes to a workshop. As an annual calendar planner user, I would like to be able add workshops to span multiple days. As an annual calendar planner user, I would like to be notified if a workshop crosses a holiday (the system should still allow a workshop to be added though). As an annual calendar planner user, I would like to be able assign trainers to workshops. As an annual calendar planner user, I would like to be able assign locations to workshops. As an annual calendar planner user, I would like to be be shown with an error indicator if I have booked a location on given date twice, or booked the same trainer into two different workshops at the same time. As an annual calendar planner user, I would like to be able to export the calendar to Microsoft Excel. As an annual calendar planner user, I would like to be able to import a csv Workshop list into the calendar control. As an annual calendar planner user, I would like to be able to view a list of all conflicts for the year - this includes workshops that clash on location or trainers that are double booked. As an annual calendar administrator, I would like to be able to restrict access for users and manage who can edit or update entries. As an annual calendar administrator, I would like to be able to restrict access for users and manage who can add or delete calendar users. As an annual calendar administrator, I would like to be able to restrict access for users and manage who can add or delete trainers. As an annual calendar administrator, I would like to be able to restrict access for users and manage who can add or delete workshops. See attached- but don't need images.