Calendars could be a really useful collaborative tool if workers could edit them the same way they can edit their Outlook or Google calendars. Many workers in my org are visual people and like having a calendar view of upcoming work/project schedules. It seems silly to me that if they want to throw a couple projects on a calendar, they have to ask me to do that for them. They should also be able to add ad-hoc items to calendars by clicking on a date, like planners can, to keep track of items outside of official projects; this could be a very handy tool for shared scheduling and planning.
