I am aware that not all of the menu options are available when clicking on the main page. This is very annoying but it appears that I have too many pages. The problem is that I can only create one level of subpage at the moment, which is a restriction that Wix has. I have no idea why.
What I need are sub-pages within sub-pages to make this work. A number of Wix customers have requested this feature, but so far it is not avaialble. In the meantime, I will try to find another way to list the pages, so that they are all visible.