For QR order system we have the multi-language option but you have to select one language at a time. Let's say your language is Spanish then you can translate the whole system into Spanish. But we don't have such a system that you want to add 3/4 languages in the system and then the user can select their own language. Our system supports any language but you have to define only one language for the system. we don't have language swapping system from the user end.