Do one of the following:

• From the Behaviors section of the Library, drag a Shape behavior to a shape, mask, or paint stroke in the Canvas, Layers list, or Timeline.

• Select a shape, mask, or paint stroke in the Canvas, Layers list, or Timeline, then select a Shape behavior in the Library and click Apply in the preview area.

• Select a shape, mask, or paint stroke in the Canvas, Layers list, or Timeline, then click Add behavior pop-up menu in the toolbar and choose a behavior from the Shape category.

  Note: When you apply a Shape behavior to a simple shape (a shape without control points), a dialog appears asking if you want to convert the shape to a complex shape with control points.

  The Shape behavior is applied to the shape, mask, or paint stroke.