| action | The requested action. One of DragManager.COPY, DragManager.LINK, DragManager.MOVE, DragManager.NONE. String. | 
                        
                        
                           
                           | draggedItem | Optional: The object being dragged. String. | 
                        
                        
                           
                           | keyModifier | Optional: A constant that indicates which key or key combination, if any, was pressed while this operation took place. One of: flexAlt,
                              flexControl, flexControlAlt, flexControlShift, flexControlShiftAlt, flexShift, or flexShiftAlt. For example, if the Shift
                              and Alt keys were pressed, then the value would be flexShiftAlt. ModifierKeys. |