Apple Motion 4 - Manual (Page 532)

By default, the anchor point is located at the center of each object. Prior to adding
behaviors to animate these layers, you need to move the anchor points so that the layers
move the way they’re supposed to. In this example, the hands should spin about the
center of the clock face, not the center of the hand itself, and the pendulum should swing
from its top.
2 Choose the Adjust Anchor Point tool and move the anchor points of both hand layers
and the pendulum layer to the center of the clock face.
Now that the composition is set up to be animated, the only remaining thing to do is to
assign behaviors to each of the layers.
3 Select the minute hand layer, open the Properties tab in the Inspector, Control-click the
Rotation parameter, then choose Rate from the shortcut menu.
The Rate Parameter behavior is applied to the Rotation parameter.
4 In the Behaviors tab, set the Rate parameter to –49.
532 Chapter 9 Using Behaviors