[xwiki-users] Problem with changing access rights at a page level

Hi, I would like to change access rights for a given page. Regarding to: http://platform.xwiki.org/xwiki/bin/view/Features/RightsManagement it should be possible with "Hover over "Edit" and click on "Access Rights":". Unfortunately I don't have any drop down menu next to an "Edit" link. I can just click Edit, but I don't see any rights management options there. My account has an Admin rights in my wiki. Has it been changed since a version described in a documentation? I'm using XWiki 4.4. Marcin