CENTER_VP makes the specified point the center of the specified viewport.
---->(CENTER_VP)---|viewport|---|point|---->
In certain circumstances, using this action could be more efficient than using PAN_VP or DYNAMIC_VP.
After using CENTER_VP, you may need to use ZOOM_VP to resize your view.
If you interrupt this action, the menu button is greyed out until the new operation is complete.
CENTER_VP "vport1"
You must now specify the viewport center by clicking a point on the screen.