Hello!
I had that problem also. What I did is hide all static pages that have an orderby number > than 900. I also bolded all static pages that have orderby < 9.
Here's the code from
pages_menu.tpl
Code:
{section name=pg loop=$pages_menu}
{if $pages_menu[pg].orderby > 900}
{* Hidden page link *}
{elseif $pages_menu[pg].orderby < 9}
{* Bolded page link *}
{$pages_menu[pg].title}
{else}
{* Regular page link *}
{$pages_menu[pg].title}
{/if}
{/section}
This is great because you can do everything from the backend, and it's easy to implement!
I also have a very similar thing for my subcategories.