function plt_hide_um_story_lite_menus() {
//Hide the "Stories" menu.
remove_menu_page('edit.php?post_type=um_story');
//Hide the "Stories → All Stories" menu.
remove_submenu_page('edit.php?post_type=um_story', 'edit.php?post_type=um_story');
//Hide the "Stories → Add New Story" menu.
remove_submenu_page('edit.php?post_type=um_story', 'post-new.php?post_type=um_story');
}
add_action('admin_menu', 'plt_hide_um_story_lite_menus', 15);