Configure what languages will be used to add content in admin and display content for users. Only one language can be default language, for the default language the language code will be ommited from

Configure the region list for a specified region group, regions can be from different countries or the same country.

A region is part of a country usually an administrative area within a country. You can enabled only the regions that your site needs.

Cofigure what currencies are available for users to purchase products.

Configure curreny details like left/right symbol or value.

Configure region groups to manage taxes or shipping zones for different geographical regions.

You configure language code, if active or default and install a language pack if available.