Thank you for the detailed information rharv. I think this is how I got it to work initially but I wasn't sure. I had loaded Xpand!2 into one track. I selected this from the list VSTs that I had previously used in RB. Now, I go to a new track. But this time I select the Port entry and the list with Xpand!2 is now selected. Now both tracks are using the same Port and all I have to do now is change the channel to suit the one of the 4 available on Xpand!2.

Another way I found was to simply duplicate the track that had the original Xpand!2 on it. This works with both tracks using the same Port.

Also, when you say about having a patch set up in the VST beforehand, I'm not sure that I understand this. I can't load a patch until the VST has been instantiated on the track! But at least now it's clearer in my mind about how it works.

Thanks