It seems that the "grammar kind" inside window objects to
using "that" in a compound sentence.  It puts its little
green or red squiggly line and sometimes I change it and
sometimes I don't.  so what's wrong with using "that"?

Does anyone know of a way to highlight Nouns, Adjectives
or Verbs in a word document.
I would have thought, given that word contains a
dictionary, that this would be fairly easy to do.