Team members and social media.

Hello
I have a theme of your “Game Addict – Clan War Gaming Theme”
Please tell me how can I add more social icons and links in the team profile and theme settings? screenshot download does not work, attach links.

http://ipbonline.ru/help/image/link.jpg
http://ipbonline.ru/help/image/link2.jpg

I would like to see it links social networks such as Vkontakte (vk.com), odnoklassniki (ok.ru), Twitch (twitch.tv)
Please tell us how to do it?

and another question.
How can I update the plugin LayerSlider WP, it asks to upgrade key, which I do not have.

I forgot to add that here, too, need to http://ipbonline.ru/help/image/link2.jpg social links to the “Steam”, “ok.ru”, “vk.com”.
If possible, can you do so that the administrator would have been able to issue itself links social networks?