For a CMS system, I wish to create a hierarchy of web pages where sub-pages 'point' to their parent page which itself is a child page of another parent page etc. 

I don't want to limit the number of levels that the web site requires.

The most structured way of pointing to another page is to use a Lookup field for the ID of that page. I have tried to do this put the field doesn't appear in the form. Does ZC disallow a form to lookup records in the same table?

Is there an elegant way of doing this?