Csurf current 3d volume (right)

This entry is auto-updated when one of the "3D:"
radio buttons to the right of the VOLUME button
is clicked.

The entry will accept either a COR dir (e.g.,
orig, containing COR-??? files), or an
.mgz file.  If suffix is omitted, and there
is no COR dir, the suffix will be auto-appended.

To load a non-standard volume (one not included
in the set of "3D:" radio buttons), select it
from the dropdown, or type its name into the
entry and hit VOLUME (or <Return>).
