Here you can define handle objects, which you can then use to control the spline's points.
Adds a new entry to the Handles list.
Creates a null object which is then used as a handle object. This null is assigned automatically to the top entry in the Handles list that does not yet have an object assigned in its Objects link field.
The tag places the null object at the same position and rotation as the spline point it represents. The Depth value is set automatically for the handle so that its tangent matches the spline point's tangent.
Deletes the entry at the bottom of the Handles list.
Here you'll find a list of all the handles that are assigned to the tag. Each handle has the following five settings:
Defines the index number of the point that you want the handle to control.
Drag & drop the object you want to use as the handle into this link field.
Defines whether the handle should also affect twisting for the chain.
Twist must be set to a different option than None.
Defines the tangent's length for the spline point. This parameter is only available if the spline's Type is set to Bezier.
Shifts the spline point along its tangent by the distance defined here.