A few weeks ago Facebook rolled out some changes that have been in beta for awhile that affect how you’re able to access and interact with Page content and other Pages. Basically, you can’t log-in as a Page anymore.
Page Admins have not lost access to any functionality as a result of the change, but the process of actually doing these things is different. So while it’s not immediately obvious where and how you access all the regular functions, they are still there.
This article shows you where they’re hiding.