The spell checker in OMhelp works differently from most
in that each section can have special commands to suppress spell checking
for certain words.
This is useful because source code examples and other help
documentation tends to have a lot of special words in it.
In addition, once you specify the special words for a section,
you never need to reenter it (like with most spell checkers).
In addition, OMhelp provides for a default local dictionary and
general purpose dictionary that you can modify or completely replace
(see the spelling list instructions for installing under