Languages
Only UK English is shown at first. To add other languages, select the Languages tab and click the key + green in the top bar.Double-click new language to scroll all of the supported languages until you find the one you want. In the example, Italian is searched and selected.Then double-click the empty box under the Default column to set the new language as the default language.The new language appears in the Messages table. You can also order the languages columns any way you want simply by dragging them.
You can delete a language with the usual method by selecting it and clicking the red cross.