Set up the translations module 

You can send for translation all ASP.NET Core widgets, both built-in and dynamic, using the Translations module. 

By default, Sitefinity CMS has a registration only for the Content block widget.  
You must explicitly register all other widgets in the translation module settings. 

To create a new registration, perform the following: 

1. In Sitefinity CMS backend, navigate to Administration » Settings » Advanced.
2. In the left navigation, click Translations » Strategies. 
3. Create a new entry of type DecoupledControlStrategy.  
   Or enter the full name of the strategy manually: Telerik.Sitefinity.Translations.Strategies.DecoupledControlStrategy
4. Enter the name of the widget.

   NOTE: For a list of built-in widget names, see Sitefinity GitHub repository » ViewComponents. 

5. In PropertyMappings, list all of the properties that you want to translate.
   For more information, see Translations module settings.

   NOTE: Nested properties are separated by a period (.) in the path.
   For example, MyCompositeProp.MyTextField