You can use the
viz.mergeLinkable command for this:
Code:
#InertialLabs Sensor Setup
InertialLabs = viz.add('InertialLabs.dle')
sensors =InertialLabs.addSensorBus(workset=0,port=6)
# Get handle to first sensor
oriTracker = sensors[0]
#Connect to phasespace server at specified IP address
phasespace = viz.add('phasespace.dle',0,'192.168.0.114')
#Add first marker
posTracker = phasespace.addMarker()
#create 6DOF tracker from two trackers
headTracker = viz.mergeLinkable(posTracker,oriTracker)
#link the viewpoint to the headtracker
viz.link(headTracker,viz.MainView)