The system allows you to set individual privileges for managers of the website. For example if you did not want to allow a specific user to be able to add or update pages then you would simple click off the 'Allow Access' against 'Pages' in the page show below. Having done this that user would not see the site pages' icon and link on their control panel.
Notice the 'Display Rows' field on this page. This determines, for example, how many links are displayed on each page when maintaining links. In the above example it is currently set to ten.