Accessing devices in a specified order

[sr-richie]

Running 4 kinects on a single machine.
I would need to start/access them in a specific order.
I tried:
mKinect0.getNuiSensor ().NuiUniqueId()
and
mKinect0.getNuiSensor().NuiDeviceConnectionId()
but I have noticed that the returned Id are changing everytime I compile the application.

I did something similar in Cinder (and KCB) by accessing the MsKinect Frame and using the getDeviceId() method.
Just wondering how to do something similar in oF version of it