Click on the plus sign again, but this time choose setProperty from the list. Then click on the drop-down menu to choose the Visibility property from the list. In the Target box, type ../../icon, and in the Value box type100
The visibility property of the dummy clip is now set to 100, which essentially means ΓÇÿonΓÇÖ. We use the dragOut event so the clip only becomes visible then when the user starts to drag on the button.
Next we should create a series of events that will execute when the user stops dragging and releases the mouse.
