My company has a template with customized Heading 1 and Heading 2 styles. Some documents that use this template require a table of contents, and we want TOCs to look the same in every document that needs one. We want the TOC to have a "Table of Contents" heading that looks exactly like Heading 1, but we do not want an entry in the TOC that says "Table of Contents".

Thus, we have created a separate style called "TOC Heading" that looks exactly like Heading 1, and I know how to exclude that style from a TOC when I add one.

What I cannot figure out how to do is add that to the template so that anybody using the template can insert a TOC formatted the way we want it to be. (The worst part is, I had it once a year ago, but it disappeared in a template update, and I can't remember how I managed to do it before. It used to show up on the Reference > Table of Contents gallery.)

Any help?