Add social icones in menu, page full screen and page with 2 colonnes

Ho I use the Catch Evolution Theme, free at this moment. I will see for tage the pro version. I have some quetions for modify the layout. 1. I want to add in my menu the social icones (Google+ and Mail). How can I do this operation ? 2. Is it possible to have a large page, according to the device 3. I want to have some pages with 2 colonnes for frenc and english parts Link: my site http://fredericvoyage.fr/ under construction concerning the structure I already use the additionnels CSS for several tests Thank you for your help Frederic from France with a bad english written ?