Aspose::Words::Saving::HtmlSaveOptions::get_NavigationMapLevel method. Specifies the maximum level of headings populated to the navigation map when exporting to Epub, MOBI, or AZW3 formats. Default value is %3 in C++....navigation map when exporting to EPUB, MOBI, or AZW3 formats. Default...navigation panel of a saved Epub document. auto doc = MakeObject...