Apple Motion 4 - Manual (Page 464)

HUD Controls
There are no HUD controls for this behavior.
Adding a Custom Behavior
Prior to creating a Custom behavior, you must first add the Custom behavior to an object
in the Canvas.
For more information on saving behaviors, see Saving and Sharing Custom Behaviors .
To add a Custom behavior to an object
Do one of the following:
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Select the object to which you want to add a Custom behavior, click the Add Behavior
icon in the Toolbar, then choose Parameter > Custom from the pop-up menu.
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In the Library, select the Behaviors category, select the Parameter subcategory, then drag
the Custom icon to the object in the Canvas, Layers tab, or Timeline.
The Custom behavior is applied to the object. The behavior has no effect until you add
a parameter to the behavior.
To add a parameter you want to animate in a Custom behavior
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Choose a parameter you want to add to the Custom parameter list from the Add Parameter
pop-up menu. This menu contains every animateable parameter.
The parameter appears in the Behaviors tab below the Custom behavior.
The new parameter
appears here.
Once you’ve added all the parameters you want to animate in your Custom behavior,
you can keyframe them in the Keyframe Editor to create whatever animated effect you
require. For more information on keyframing parameters to create animation, see
Animating Behaviors .
464 Chapter 9 Using Behaviors