In case you need to use a particular Control key in your Simulation Flow / Workload. To do so you need to add the Free Code action from the LoadGen Studio Recorder Toolbox
Name the Free Code action and add it code below. Change the Action key which in this example is the Escape key.
' Control Key down '
DuafHost.KeyDown("LControlKey")
System.Threading.Thread.Sleep(TypeRate)
' Action key '
DuafHost.KeyDown("Escape")
System.Threading.Thread.Sleep(TypeRate)
DuafHost.KeyUp("Escape")
System.Threading.Thread.Sleep(TypeRate)
' Control Key up '
DuafHost.KeyUp("LControlKey")
System.Threading.Thread.Sleep(TypeRate)