How do I generate navigation labels

[hangjob]

我想把 标题 生成导航标签，类似以下这样

I want the title to generate a navigation tag, something like this

[hangjob]

What are the solutions

[VolodymyrBaydalka]

Since table of contents is built using the TOC fields, there is no easy way to get table of contents (http://officeopenxml.com/WPtableOfContents.php). Partial solution is to select all elements headers styles/classes.

[VolodymyrBaydalka]

Closed as duplication of #4