I consider it that this implies that I must have canonical URL during the English Variation pointing into the Thai version (and, Thai Edition pointing to by itself). Allow by default. For those who permit this selection, new products will automatically be activated any time you produce them. Also see https://bookmarklethq.com/story18781612/the-smart-trick-of-hreflang-not-using-canonical-that-no-one-is-discussing