In Exchange 2013, EAC (Exchange Admin Center), when you click on Edit, it opens a small window. It should open a larger window. For example, Recipients > Mailboxes > then click "Edit" on one mailbox. The window that opens is only about half the screen size. Why such a small screen ? I usually need to increase it anyway. And also why show -- More Options-- at the bottom of the Edit screen when there are only a few more attributes to display. Just show them all. Example: Mailbox does not show --Mailbox database--, until you click on -- More Options--.