[xwiki-users] Some queries regardings how right management works in XWiki?

At link http://platform.xwiki.org/xwiki/bin/view/AdminGuide/Access+Rightsit is given that 1) Right can be set at the page level. :- For example it is given that , View right can be set at the page level. But do not see any way for setting the right at page level( i can see how to set it at space level but not at page level ). i am working xwiki-enterprise-web-3.2.war and xwiki-enterprise-wiki-3.2.xar 2)Checking order for View rights are given as page > space > wiki. What my understanding from this is if we have given view rights to Group A For Space A at space A level but left the view Rights check box as blank for the same group at Wiki adminstration level, Then Group A user should be able to view and search the Space A content on the page we see just after login , as permission at at wiki level are overriden bt permissions at space. But this behaviour does not happens. It happens only when Group A has view rights at both level i.e at wiki administration level and space level. *Not getting what does checking order means here?*