Insert TOC to use Heading Style TOC 3 only

Question

Word 2016

I have an existing TOC in my document that use heading style TOC 1 & TOC 2.

I would like to create a custom TOC.
using TC field codes within a bookmark.
The TOC to use only the heading style TOC 3

this is my toc fieldcode

{ TOC \b bookmarkName \f \n \h \z }

When I create the fieldcode using either:
Insert ribbon, Quick Parts, Field, Index and Tables
or
References, Table of Contents, Custom Table of Contents ...

The toc inserted displays the content correctly.
However the TOC heading style by default is always TOC 1.

I would like the TOC heading to be TOC 3. This allows me to format TOC 3 differently.
I want to avoid writing code to update the custom TOC to use heading style TOC 3.

When I use the switch \ l
eg

{ TOC \b bookmarkName \l 3 }

the result - displays Error! Not a valid heading level range.

How can I do this.

TIA

Answer 1

To create a TOC that references level 3 (Heading 3) paragraphs in a bookmarked range, use the following field code:

{ TOC \o "3-3" \b "BookmarkNameHere" \h }

The \h switch creates a hyperlinked TOC. You can omit that switch if you wish.

Answer 2

Thank you all

@ CharlesKenyon-8472 thank you I came across Suzannes detailed page

@Stefan Blom

this is my updated fieldcode

{ TOC \o "3-3" \b "bookmarkName" \f \n \h \z }

When I update the toc, the results are updates the fieldcode and TOC 1 heading style is still applied, and not heading style TOC 3