What We'll Cover
The countries and languages listed only control which countries and languages are offered for the string system (translations). Updates to the countries/languages are done through Corporate Office. You can sync changes from Corporate Office with the Sync button.
If there is a language next to the country, then the client is active in that country. If there is no language next to the country, they are not active and it can be disregarded.
Translations can be submitted in the Web Office Admin through Content Management > Translations.