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.ll 60
.pl 5
.ce
SAVING A GENERATED 3D MODEL

After the automatic generation of a 3D model, the usual practice is
to modify it with the editing and refinement tools provided.
It is therefore often convenient to save the resulting
3D model as a finished product or as one subject to subsequent modification.
There is provided two ways of saving a generated 3D model.  One is to make
a PDB file of its 3D coordinates and the other is to make a molecular file,
called a 3DM file, that contains all the rendering and structure 
information required to reproduce it in its exact state prior to its
being saved. Both ways are invoked via menu items of the
3D 'Utils' pulldown, the first as the 'Make a PDB file' item and the second
as the subitem 'Save as a 3DM file' of the '3DM Utils' item. The
submenu '3DM Utils' also contains four other items. These
are 'Rename 3DM file', 'Replace 3DM file', 'Delete 3DM file'
and 'Edit Model Comments' .  They are
particularly useful utilities relative to generated 3D models which
have been or are to be saved as 3DM files.  Thus, prior to saving a
a generated 3D model as a 3DM file, describing it with suitable comments
is invaluable for recalling what has been done to it and what, if anything,
is planned to be done at another session.  The comments which can
be recorded are limited to 8 60-column lines.

.ce
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