Translate My Store App offers a language selector and it can enable or disable the RTL layout for Arabic, Hebrew, Pashto, Persian, Urdu, Yiddish, etc. You can enable it by toggling the button as shown below on our language selector page in the App.
Please note, the actual RTL layout is fully controlled by the theme. Our App can enable or disable the RTL layout. If you find the theme is not fully compatible with RTL layout, you can disable it in our App, and contact the theme developer for more details.