Dear Lorenzo,

In order to create a new language in your Merchium store, it is necessary to clone the existing language and update its language variables using the corresponding .po file that can be downloaded from the translation service:

https://crowdin.com/project/cs-cart-latest

Please download the .po file for the necessary language there. In order to get detailed instructions on the translation process, please refer to the following link:

http://help.merchium.com/support/solutions/articles/1000040928-how-to-translate 

We hope you will find this information useful. Please feel free to contact us if you have any questions. We will be glad to assist you.

Thank you.