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++....Aspose::Words::Saving::HtmlSaveOptions::get_NavigationMapLevel...navigation map when exporting to EPUB, MOBI, or AZW3 formats. Default...