Hi
Thank you for this nice plugin!
Display question
I tried it with an Epub3 produced by ODTImport which passes Epubcheck. ODTImport produces a Text/nav.xhtml which I like to place at the end of all files and to add a link with my stylesheet.
It looks like this :
Once I have added semantics, your plugin adds under this nav (in the same xhtml file) the new landmarks nav.
This one is displayed only with the Prince PDF and appears neither in Sigil or in Calibre editor preview. It appears though in Code View with the Calibre editor.
Also to the previous nav has been added the expression : role="doc-toc"
What did I miss to make it appear in Code view and display in preview?