Add a new CBOX Sidebar

cbox-sidebar.php

/**
 * Register New Sidebar
 */
function cbox_register_alt_sidebar()
{
    register_sidebar(array(
        'name' => 'Alternative Sidebar',
        'id' => 'alt-sidebar',
        'description' => "The Alternative widget area",
        'before_widget' => '<article id="%1$s" class="widget %2$s">',
        'after_widget' => '</article>',
        'before_title' => '<h4>',
        'after_title' => '</h4>'
    ));
}
add_action( 'init', 'cbox_register_alt_sidebar' );