SEE ALSO LIGAND.TXT

Ligands and non-standard residues reported in the molecule information tab:

getHetNam() in moltab.js

Count is done with e.g.

print {[TRS] and hetero}.groupindex.all.count().length

This was failing in JSmol 14.3.7 with 1ijw consistently, reported to jmol-users Sept 20, 2014.