Allow users to setup location for offline content and to manage folders
Allow the users to select which location to use for downloaded emails and other app data. It should be nice for low performance mobile users with limitted ammount of internal memory to have data on sd card
Also, actually I can not create, delete or remove folders from OWA for Android. I don't know if this is to an issue or simply it is not implemented. Note: web app when opened from my Android 6 smarthone, using Chrome, doesn't allow it too, even using "view as computer" option.