Add and Set Default Language in App Locale

It will be great to have the option to add a new language and be able to set/change the default language in App Locale.

I second for this. Please add this feature.

It is present, only now this option is activated when checking the creation of the object, that it be multi-language.

Can you share the details how to localization of Laravel Classice app??
I am facing this problem on online server on web hosting, Please see snapshot