I have a Calendar with several views on the same list. These views filter based on a choice column and are used in an overlay to show each choice as a different color. My problem is that the delete button (show on the ribbon with the calendar.aspx) is grayed out when looking at the overlay. WHy is this since all the views are of the same calendar list? Is there any way to allow delete of an event from a calendar overlay (other than from the dispform.aspx)?