How to duplicate messages in two different xmpp clients but connected with same account?

Hi there, could you please let me know if there is a possibility to run two client-programs simultaneously on different computers using only one jabber account? So all messages would appear on both devices as this implemented in mobile and PC applications for the Viber. The same messages that appear on one device would be duplicated on another. We run Jabber server using Windows Openfire version. Or can we have this option as additional payable add-on or plugin or somehow else? Thank you.