I was looking for an answer to this question for a while and could not find a solution here, so I thought it would help! I found a great blog post and a great solution to my question:
http://davidwalsh.name/add-submenu-wordpress-admin-bar
As adding functionality to your theme and other areas of administration, directives will appear in your theme functions.php file. The code itself should be self-evident:
function create_dwb_menu() {
global $wp_admin_bar;
$menu_id = 'dwb';
$wp_admin_bar->add_menu(array('id' => $menu_id, 'title' => __('DWB'), 'href' => '/'));
$wp_admin_bar->add_menu(array('parent' => $menu_id, 'title' => __('Homepage'), 'id' => 'dwb-home', 'href' => '/', 'meta' => array('target' => '_blank')));
$wp_admin_bar->add_menu(array('parent' => $menu_id, 'title' => __('Drafts'), 'id' => 'dwb-drafts', 'href' => 'edit.php?post_status=draft&post_type=post'));
$wp_admin_bar->add_menu(array('parent' => $menu_id, 'title' => __('Pending Comments'), 'id' => 'dwb-pending', 'href' => 'edit-comments.php?comment_status=moderated'));
}
add_action('admin_bar_menu', 'create_dwb_menu', 2000);
; . WordPress, !