By default, your Nexudus account subscriber lists can be found in the following subscriber groups:
Currently in the space
To add a new subscriber group, go to the list and click on the Add Subscriber Group button.
The newsletter content can be in whatever language you want. However, if you need different newsletters depending on the language that subscribers have set on their accounts, you can do so in the following languages: English, American English, Spanish.
You can use the "Currently in the space" subscriber group.