[Origin] command will update only the origin without rotating CPlane.
The example below is updating the origin by using object snap "Face Vertex".
While
"Specify the origin of CPlane"
prompt is displayed, specify the new origin of the CPlane.The updated X and Y
axis will be dynamically shown according to mouse-cursor movement.
When input is finished, the command will be terminated after the current CPlane is updated.