Disable language pair
From Protemos Wiki
Language pairs page: https://cloud.protemos.com/lang/index
You can use disable a language pair if you don't want to see it in the drop-down list when choosing a language, for instance, while creating a new project.
To do so, press the "Disable" button:
You can enable this language pair again (the button appears after you disable the language pair) if you want to see it in the drop-down list.