No attachment menu entries

Hi there,
I’m running an XWiki Installation since last year. Yesterday I was requested to enable attachments. I actually have no recollection of deactiviating it anywhere. I checked, the attachment extension is installed, but the options to attach files does not show in any of the menus. I updated to 13.04 to see it if helps, but it didn’t. Any ideas what I could check?

Thank you very much