Hi

I have a table of contents created, but need to add another section

Example:
1.0
1.1
1.2

1.1.1
1.1.2

When I updated the toc, 1.0 , 1.1 etc. uppdates in the toc, however the
section 1.1.1 etc. doesn't show up.

How do I add an additional section to the toc.