I have asked the QuailTeam the same thing. Asking for better CMS control of standard pages. As I find xCarts handling of this extremely cumbersome. (like so many things in this tool).
but one thing that has helped, is the Module for the Smart Menu, which has replaced the speed bar, and has better control over the menu system overall.
It's definitely worth it.
http://x-cart-customization.com/x-cart-modules/Smart-Menu.html