We have installed Kentico 6.0 on about 6 of our clients sites now. The one feature that we thought would be included would be the ability for CMS users to login and upload multiple files at ones to a folder, media library, attachments, etc.

That functionality doesn't seem to be there. For a brief time this was working on a development site we were working on, but after it went live that functionality stopped working.

Is there something that we have to enable in order to make this work?