The Content Translation dashboard shows several lists with options to filter them by language. Currently, it is possible to select any existing language combination, which often leads to an empty list. While suggestions are generated for any language pair, this is not the case for "In-progress" and "published" translations.

For those cases we can do the following:

• Include in the language selector only languages that are actually used in those list. For example, if the "In progress" list contains one translation from English to Portuguese and another translation from Japanese to Korean, the source language selector will only allow to chose English or Japanese, while the target language selector will only allow to select between Portuguese and Japanese. An option to go back to "any language" will be also available, but that will be part of a different ticket.
• Don't show the selector if only one combination is possible. For example, if the user only translates between Greek and German, the user has not much to chose from.