The Zoom In/Out behavior animates the camera’s Angle of View parameter.
After you apply this behavior, the Zoom In/Out section of the Behaviors Inspector contains the following parameter controls:
Zoom: A slider to set a proportional value to modify the camera’s Angle of View parameter. For more information about the Angle of View parameter, see Controls in the Camera Inspector.
Speed: A pop-up menu to set the type of interpolation for the movement. The value can be set to Constant, Ease In, Ease Out, Ease Both, Accelerate, or Decelerate.
The HUD contains the same controls as the Inspector.