I'm from Brazil and I'm learning french and improving my english. When I improve my english, I do it in the portuguese interface. But to learn french, I need to change my interface do english and then learn it. The problem is: Everytime I need to go to my configuration and change what I want to learn. One more thing: for curiosity, I tried to lean portuguese(my natural language) in the site, just to see the way it is showed, but now I can't delete this course.