Hi,
This feature is available in Jabber 10.6.x
http://www.cisco.com/c/en/us/td/docs/voice_ip_comm/jabber/Windows/10_6/rn/JABW_BK_C6A8A6C3_00_cisco-jabber-for-windows-10_6-release-notes.html
File Transfer enhancements (on-premises deployments only, prerequisite: Cisco Unified Communications Manager 10.5(2) ) - In addition to standard file transfer between peers, you can now transfer files in group chats or persistent chat rooms. You can also use this feature to enable file transfer compliance, where you can manage screen captures and file transfers to restrict who can send and receive files, and keep a history of the file transfer and screen captures for auditing purposes.
HTH
Manish