I have the following styles defined in Word 2007. They all have outline levels 1-6. They also correctly show up in the Table of Contents (not all, I only set the TOC up to Level 3).

1 Heading 1
1.1 Heading 2
1.1.1 Heading 3
1.1.1.1 Heading 4
1.1.1.1.1 Heading 5
1.1.1.1.1.1 Heading 6

This is what I want

1 Heading 1
1.1 Body text under Heading Level 1
1.2 Body text under Heading Level 1

2 Heading 1
2.1 Heading 2
2.1.1 Body text under Heading Level 2
2.1.2 Body text under Heading Level 2
2.1.3 Body text under Heading Level 2

2.2 Heading 2
2.2.1 Body text under Heading Level 2
2.2.2 Body text under Heading Level 2

How do I make two list sequences link to each other? Here's a {fill in the blanks} illustration:

{section number} Heading 1
{section number}.{clause number} Body text under Heading Level 1
{section number}.{clause number} Body text under Heading Level 1

The example above should expand to:

1 Heading 1
1.1 Body text under Heading Level 1
1.2 Body text under Heading Level 1

Another example:

{section number} Heading 1
{section number}.{subsection number} Heading 2
{section number}.{subsection number}.{clause number} Body text under Heading Level 2
{section number}.{subsection number}.{clause number} Body text under Heading Level 2

should expand to:

2 Heading 1
2.1 Heading 2
2.1.1 Body text under Heading Level 2
2.1.2 Body text under Heading Level 2
2.1.3 Body text under Heading Level 2

The numbered body text paragraphs shouldn't show up the Table of Contents. I couldn't find the right way to do that, whether in multilevel lists, fields, styles, etc. How do I do it right?