Hi Sedhurabe, this is a great question.
If I understand you correctly, you would like to display the translator in 5 different languages (English,Italiano,Portuguese,Spanish,Chinese), and you want those languages to open a new tab when clicked, and then the new page will display with the translated language, correct?
I do not currently know of a way that we could open a language in a new tab, but I will check into this and see if there's anything I can do to help. Most of the issue here is that I would have to change Google's main functionality, which I do not know that is possible yet.
I will check into this though, and let you know right away if I find that it's possible to add to the plugin.
Thanks so much for the question. Rob