Dear TomC,
Thank you for you prompt replay!
It did help me to get forward few steps ahead.
For the moment I need to settle with multi-language for the same Main Navigation Menu.
I added second language, created categories + articles + menu items and assigned languages respectively.
Also it was created two Menus for each languages as Main Navigation Menus;
Also duplicated original template JA_Nex to JA_Nex (RO) & JA_Nex (EN) and assigned those two languages respectively.
Both flags appears perfectly.
Then I tried in Template Manager >> Styles >> JA_Nex (RO) >> Profiles >> to assign Menu_Type respective to the name of Menu_language created earlier, but that option I select for one language JA_Nex(RO) is not independent for JA_Nex (EN), i.e. I can have one Menu_Type saved for both Template languages.
How can I get separate these selects per each language and output different MainNav_Menus per each language?