The third category not show in the top horizontal menu

When it is have more than 3 categories,and the first category have dock in menu,the subcategory will show and the third category have not show,like the 001.jpg.
So how to let the third category also show in the top horizontal menu,please?Like the 002.jpg shows,please?
Thanks.

and the 002.jpg

and the 002.jpg

The third level is not supported in the top menu. We recommend avoiding three or more levels depth as it may make your site less navigation friendly.

The third level is not supported in the top menu. We recommend avoiding three or more levels depth as it may make your site less navigation friendly.

Ahh.....
So if I want to let the third category show in the top horizontal menu,what should I do,please?
Because the site have shoes,bags and clothes,so I need the third category show in the top menu.
Thanks.

You would have to rewrite the following files:

includes/boxes/box_site_menu.inc.php
includes/templates/default.catalog/views/box_site_menu.inc.php
includes/templates/default.catalog/styles/site_menu.css

For the HTML and CSS there are plenty of guides and menu generators out there on the web.