Behaviors are a great way to animate if you don’t need frame-accurate synchronization. You can always convert a behavior to keyframes to give it better synchronization.
If you want to work in keyframes, you can turn on the AutoRecord button (the red button at the bottom left of the Canvas controls) which will automatically add keyframes as you change properties on different frames. If you double-click the button you can get to the settings and have it add keyframes only to properties that already have keyframes–this is a safer way to automatically keyframe properties.
Jim Kanter,
Digital Film Institute
http://www.dfilminst.com