#animateOff: undefinedSent when the Animate button is turned off.
#animateOn: undefinedSent when the Animate button is turned on.
#animationRangeChange: undefinedSent when the Animation range is changed.
#animLayersDisabled: array of nodesSent just after animation layers are disabled on some nodes in the scene.
Calling callbacks.notificationParam() within the callback function returns the array of nodes.
#animLayersEnabled: array of nodesSent just after animation layers are enabled on some nodes in the scene.
Calling callbacks.notificationParam() within the callback function returns the array of nodes.