Track Buttons
In a Paint and Particles operator, these buttons are available when you select an object. In a Composite operator, these buttons are available when you select a layer and a source. Use them to add Trackers and to turn off the tracking process.
PositionAdds a Tracker to track position.
ScaleAdds two Trackers to track scale.
RotationAdds two Trackers to track rotation.
OffTurns the tracking process off. When you do this, the Tracker folders are removed from the Timeline since the Tracker data has already been applied to the object(s) or layer(s). If you want to save the Tracker data separately, you can use the Import Data and Export Data buttons before turning tracking off. For more information, see Importing and Exporting Tracker Data.