Add extended dragging functionality with droppable option. Data can be attached to the element in order to specify its duration when dropped. A Duration
-ish value can be provided. This can either be done via jQuery or via an data-duration
attribute. This option operates with jQuery UI draggables. You must download
the appropriate jQuery UI files and initialize a draggable
element. Additionally, you must set the calendar's droppable
option to true
.