Address Format on multi-shop

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Hello everyone!

I'm running a multi-shop on my PrestaShop 1.7 installation and now I need to change the Address format of my country on one of these shops.

If I go to   International -> Locations -> Countries   and I select my country, I can edit all the field and then I can select on which shop apply the modifications.

Problem is, when I do that, the selected country disappears completely in the list (this one   International -> Locations -> Countries) but the modifications are applied to all the shops anyway.

Since the shops are a B2C and a B2B I really need to have a different address format.

If it can't be done through the backoffice, do you know which file I can edit to create a condition based on the shop context?

 

Thanks in advance!