COPY_VP_DRAWLIST copies the drawlist of one viewport to
another.
---->(COPY_VP_DRAWLIST)----|to viewport|----|from viewport|---->
This action has no options. Simply define the view to be copied to,
and then the view to be copied from. The entities will be displayed
in both viewports.
Use this action to copy the drawlist of one viewport to another viewport.
The following parameter sequence copies the current drawlist
from "vport1" to "vport2".
COPY_VP_DRAWLIST "vport2" "vport1"
All viewport names must be entered enclosed by double quotes
(" ").
ADD_TO_VP_DRAWLIST interrupt action
SELECT_VP_SA subaction