Is it possible to restore non-mailbox items?

Hi,
does the ZxBackup backup Calendar, Tasks and Briefcase items, besides mailbox?
If yes, is it possible to restore a Calendar, some Tasks or Briefcase folders/files with the help of ZxBackup modules?
I mean, is it possible to restore just a deleted Briefcase folder or file, back to the existing Zimbra infrastructure it belonged to before it were (accidentally) deleted, without having to setup a restore of the whole Zimbra server?

Regards

Gibaz