Merge multi-frame PDB files into a single psf/pdb combo

mergemultiframepdb 1.0
----------------------
REQUIREMENTS: VMD Version 1.8.2 or better
DESCRIPTION:
 A simple VMD/psfgen script to merge multi-frame PDB files into a single PDB
 structure, as in the case of the large multi-frame Virus capsids provided
 at the RCSB PDB site.
PROCEDURES:
 merge_multi_frame_structure
EXAMPLE USAGE:
 source mergemultiframepdb.tcl
 mol new myfavoritemultiframepdb.pdb
 merge_multi_frame_structure top /tmp/myworkarea /my/final/filename
 Results will be written to /my/final/filename.psf and /my/final/filename.pdb
 This script was tested with the following file from the RCSB PDB site:
 ftp://ftp.rcsb.org/pub/pdb/data/biounit/coordinates/divided/k4/1k4r.pdb1.gz
DOWNLOAD THE FILE:
 mergemultiframepdb.tcl
AUTHOR:
 John Stone