Hello,
Unfortunately, this functionality is not supported and at the moment it's not possible to control movement of the documents on the requested level.
But just to inform you, requirement for this functionality already exists.
On the other side, if you want functionality like this available in the feature version of Kentico, you can suggest it and also other users will be able to vote for it (more users = higher priority), on the special page:
http://kentico.uservoice.com/Best regards,
Martin Danko