To compare any two languages in a localization project, you can use the Set Reference Language option.
This feature allows you to choose any language in a localization project and display it as reference on the left side of the translation page.
The feature is available in any language page, by default for the localization project owner and its admins.
For contributors, it is necessary to have the option Read Access to All Languages enabled in the project's Settings by an admin or by the project owner.
