I created a Table of Contents.  I right-clicked on the table to edit it.
Under the Styles tab there is the assignment of Paragraph Styles to the Levels.
This assignment appears to be one-to-one, i.e., only one Paragraph Style can be
assigned to any given Level.

It is more useful if more than one Paragraph Style can be assigned to any given
Level.  (No Paragraph Style should be assigned to more than one Level at a time).

I'm working on a big document.  It has many heading levels. In particular the
level 3 headers are used in two ways in the document. In half the document, the
level 3's don't require page breaks, and so the style doesn't include a page
break. In the other half of the document, all the level 3's require their own
page (opcode definitions for a processor), and so I have a separate copy of the
Heading 3 called Heading 3 Break.

I need all of the level 3 headers to show up in the Table of Contents.  It's too
tedious to insert a separate page break for each of the opcode pages.  That's
what paragraph styles are good at.

Please allow multiple Paragraph Styles to be associated with each of the TOC Levels.

Thanks for improving this great software!