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...value is %3 . int32_t Aspose :: Words :: Saving :: HtmlSaveOptions...