Is it possible to collapse "levels" in a TOC on a Kindle book
I'm not sure of the correct terminology, but here goes.
In Sigil I produced, in a book, a TOC with sub-levels by using Heading 1 for the title, Heading 2 for the Section names and Heading 3 for the Chapter names. I then used Calibre to convert the epub file to mobi.
Opening the mobi file in Calibre I can collapse and expand the various levels, that is I can show only the top level, the title, or the next level, the Section names, or the lowest level, the Chapter names.
When I export the mobi file to my Kindle I am stuck with the TOC fully expanded. Is it possible to collapse the various levels in the same way as when the document is opened in Calibre?
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