@E4ME1
In Admin backend:
Pages:
1. Create all pages as content of same category.
2. Or create each section in different categories.
(O.k. you already did this!) Menu Items: Create
Site > Menu Manager > Main Menu (or User Menu)
ad 1. Create an item for each page or subpage as content_blog_category. Then all created content pages will appear.
ad 2. The sections can be linked as complete category_section. (You will have to test what looks better for you.)
(This seems to fit on your site also.) Order/Submenus:
In each menu-item you can choose the "Parent Item" (Menu 1) under which the sub-menu-item (Sub-Menu 2) should be displayed after the user selected the (parent) menu-item.
Menu 1
> Sub-Menu 2
(That's where you can structure your menu-items.)
Hope this little HowTo helps and fits to your request
