simonE-22

Problem:
You need to apply site-wide design changes across multiple language versions on your website and are also looking to add US English as a language option.
Solution:
To apply design changes across all languages, you can use the default behavior of WPML with a page builder like Divi. This allows you to maintain one main design, where WPML replaces the content strings within the page builder's shortcode. For detailed guidance on managing different designs for different translations, we recommend checking out this documentation: Using Different Translation Editors for Different Pages.
As for adding US English, this can be set up as a custom language, and it is a straightforward process.

If this solution does not resolve your issue or seems outdated, please open a new support ticket. We also highly recommend checking related known issues at https://wpml.org/known-issues/, verifying the version of the permanent fix, and confirming that you have installed the latest versions of themes and plugins. For further assistance, you can contact us directly through the WPML support forum.