How to export all i18n of an AEM project on i18n translator?

Hi,

I was created a project in AEM and translated it to ZH-CN. My website is multiple language (EN, ZH-CN). Now, I want to export all i18n folder in my apps. Because, I want to send the export file to the professional translator to preview. However, when i go to http://localhost:4502/libs/cq/i18n/translator.html  I can't select all i18n in my apps to exports them. How select all i18n in my apps to export?

Thank you so much,