[Groff] Why doesn't MOM have generalised sectioning?

[Blake McBride]

Greetings,

MOM has main headings, sub-headings, and paragraph headings.  Each has it's
own set of macros, and there is a limited number of levels.  Is there a
reason for this?  MM has it generalised.  It uses fewer macros and goes to
more levels.  I don't understand this?

Thanks.

Blake McBride