Social links

Hi I have purchased your theme & have a couple of questions please.
1. How can I make the social media links in the header bar open in a new tab using _blank? I’ve managed it with the footer social media links.

2. Is it possible to override the titles on the banner that spans across the page? I.e I have installed an events calendar but it says Archive: as the title & would like it to say Events (this is just above the breadcrumbs which says Home / Events. I’d also like to change the home login screen (ultimate member) to have welcome text rather than just the text saying Login, as the example above.

Thank you