DDM 2.x and Network KVM - anyone actually used it?

We purchased a bunch of the Dell U3223QE monitors - I am trying to use the latest version of DDM to setup a network KVM.  I have a cluster setup.  My computer has (3) monitors, and the remote computer has (2) monitors.  They are all U3223QE monitors.  The software recognizes that each computer that is a part of the cluster has multiple monitors.  Please tell me if I am missing something - how do I see the desktop screens of the remote computer?  It just isn't obvious - or can't I even do that?  I have read through the user guide - I am assuming I should be able to control and see the desktop of the remote computer somehow?  Any help is appreciated.