[DISPLAY\]VIEW Argument [FirstPlane [LastPlane]] [/NOPAUSE]
/OVERLAY [Variable [Channel]]
Overlay (in contours) the specified Channel of the specified SIC 2 or
3-D Variable. The default Variable is CONTINUUM, the continuum image.
If Variable is a 3-D SIC Variable, Channel indicates which plane is
overlaid (default: last one).