shoestrap-3-extra-widget-areas - /includes/functions.php#L211

functions.php

<?php

function shoestrap_ewa_widget_area_wrapper( $action = '', $num = 3 ) {
	global $ss_framework;
	if ( shoestrap_getVariable( $action . '_check' ) == '1' ) {
		echo $ss_framework->open_row( 'div', null, $action.'_outer', null );
		echo '<div class="'.$action.'">';
			for ( $i = 1; $i < ( $num + 1 ); $i++ ) {
				echo '<div class="'. $ss_framework->column_classes( array( 'medium' => 12 / $num ), null ) .'">';
					dynamic_sidebar( $action . '_' . $i );
				echo '</div>';
			}
		echo '</div>';
		echo $ss_framework->close_row( 'div' );
	} elseif ( shoestrap_getVariable( $action . '_check' ) == '2' ) {
		echo apply_filters( 'the_content', shoestrap_getVariable( $action . '_custom_content' ) );
	}
}