Premium - one channel - how to make a presentation from more than one of my machines ?

I have a Premium/1 channel licence.

I need to make presentations using more than one machine (during the same presentation) where my licence is installed to demonstrate software.  It does not work as another channel seems to be required.    If I use a machine where my licence is not known, it works fine (it is just seen as a participant to the presentation).

Is there a way get this to work ?

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