Website X5 works quite nice.

Perhaps it’s a good opportunity when in the page section an overview of all the layers and pages of the website are shown. Then it’s possible to jump to the page selected directly, without going thru all the pages before the needed page. The overview of all the pages can be an icon, which only reveals it's content when clicked on it. When the needed page is selected, the user goes directly to that page.

I also believe that it’s very handy when it’s possible to jump to the page selected in the sitemap. For example; right click, go to page (this on top of the options at this moment).

I do believe that both options will speed up working with Website X5.