How to show different 'Enfold Main Menu' in different pages on the same website

Hallo, I am developing a multi-language website, with WordPress 4 and your wonderful Enfold Theme.
This is the English version: http://casapairola.it

Now I have cloned this page and translated in Italian: http://casapairola.it/italiano
everything is ok except for the menu. Here I need to show the 4 green buttons in Italian, and I don’t know how to succeed.

In the WordPress dashboard / Menus, I have prepared a second menu (MenuItalian) with the same structure of the English one, but with the texts in Italian.

Then I went to the ‘Manage Locations’ section, and I set the header and footer menus to:
Enfold Main Menu: MenuItalian
Enfold Secondary Menu: -nothing
Enfold Footer Menu: MenuItalian

But when I save the changes, the menus are showed in Italian also on the English page… it seems that the change affects the whole website.

How can I use different ‘Enfold Main Menus’ on different pages in the same website?
Where can I tell to the Italian page to use the ItalianMenu instead? And to the German page to use the GermanMenu and so on…?
Is it a WordPress limitation, or a theme limitation …or my limitation! Is there any workaround to solve the problem?
I like the ‘Button Style (Colored)’ menu style of the theme, and I would like to use this on the header’s Enfold Main Menu of all pages in the different languages.

I’m quite new with WordPress, excuse me if this question was already made.
Thank you very much.
Mauro Bricca, Italy