Hi,
Please open the mainnav.php file and modify it (change width of menu width, add new position to put the social), here is the code:
<?php
/**
* @package T3 Blank
* @copyright Copyright (C) 2005 - 2012 Open Source Matters, Inc. All rights reserved.
* @license GNU General Public License version 2 or later; see LICENSE.txt
*/
defined('_JEXEC') or die;
?>
<!-- MAIN NAVIGATION -->
<nav id="t3-mainnav" class="wrap navbar navbar-default t3-mainnav">
<div class="container">
<div class="row">
<div class="col-md-8">
<!-- Brand and toggle get grouped for better mobile display -->
<div class="navbar-header">
<?php if ($this->getParam('navigation_collapse_enable', 1) && $this->getParam('responsive', 1)) : ?>
<?php $this->addScript(T3_URL.'/js/nav-collapse.js'); ?>
<button type="button" class="navbar-toggle" data-toggle="collapse" data-target=".t3-navbar-collapse">
<i class="fa fa-bars"></i>
</button>
<?php endif ?>
<?php if ($this->getParam('addon_offcanvas_enable')) : ?>
<?php $this->loadBlock ('off-canvas') ?>
<?php endif ?>
</div>
<?php if ($this->getParam('navigation_collapse_enable')) : ?>
<div class="t3-navbar-collapse navbar-collapse collapse"></div>
<?php endif ?>
<div class="t3-navbar navbar-collapse collapse">
<jdoc:include type="<?php echo $this->getParam('navigation_type', 'megamenu') ?>" name="<?php echo $this->getParam('mm_type', 'mainmenu') ?>" />
</div>
</div>
<div class="col-md-4">
<jdoc:include type="modules" name="<?php $this->_p('social') ?>" />
</div>
</div>
</div>
</nav>
<!-- //MAIN NAVIGATION -->
Create new module, assign it to the position "social". You may need to customize style for the module.
Regards.