How to tell TestExecute to use saved RDP settings?

I am using Test Execute to run distributed testing over several different VM's.  The problem is that one internal web applicatoin we use has to be used at 1920x1080 resolution, and it doesn't seem test execite is smart enough to scroll to the left and right like it can scroll up and down.  So I need to find a way to tell TestExecute (coded via Test Complete) to open an RDP session using saved settings that include smart sizing:i:1 (http://support.smartbear.com/viewarticle/56548/).  The works manually, but how can I open that RDP session when test Execute is started via command line?  Thanks very much!