I have created following store structure;
Website: xxx.de Store: Germany Store View: German
Website: xxx.nl Store: Netherlands Store View: Dutch
Website: xxx.fr Store: France Store View: French
I want to use all languages on other websites too like French and German on xxx.nl with Dutch language. I don't want to create same languages under stores it's to much work for translate and I do use "Add Store Code to URLs " option I will keep it too for all websites.