Thank you for the very useful tutorial.
Do you think you could give me a hint what changes need to be done to it to make it work with two domains, one for each language?
I've tried to follow it for setting it up for two different domains but it doesn't seem to work - when I choose source for main links in en/admin/structure/menu/settings i get only one menus to appear, only in English. If I open the fr/admin/structure/menu/settings for the 2nd language to check I find it is set to English. If I change it now back to French and open fr/admin/structure/menu/settings to see which language is set there I find it is French. Maybe you have a