TYPE: Object State
TITLE: Null Operation

The Null operation is used to create an object that is most often used to
provide control over the transforms of other objects.  Null objects are not
rendered, but they have full transforms and so can be used as parents for
other objects, or serve as the end affector for Inverse Kinematics bone
chains.

You select the object that will be used as the parent for the new Null
object, and right-click to complete the operation.  The new Null object
appears with a transform handle that can be used to change its position and
orientation.  The translate and rotate parameters also appear in the operation
controls bar above the viewport.

You can change the Null object\'s parent object any time by hitting the
Reselect Geometry button or typing \'${h.pane.gview.redoselection}\'.  If
Secure Selection is turned off, selecting a new object will immediately
complete the selection and connect the new parent.  Otherwise, you right-click
to signify that the object selection is complete.

If Secure Selection is turned off, you can select any other object in the
viewport.  Doing so will switch to the operation appropriate for that object
type, and the current operation will be exited immediately.
