Would it be possible to add some fields to define the hybrid channels for an object when defining the model? And then in the preview when channel X, Y, or Z has a non-zero value, the entire object is shown in the appropriate color?
In my show, hybrid channels are handled 2 ways: the DLA way - the first 3 channels of the string, and the Falcon way - hybrid channels grouped together anywhere in the universe. User entry solves the problem for these paradigms.
IMHO, the xL/NC preview is user friendly and easy to build. I don't necessarily need a picture of my house in the background, but I would like to see the hybrid colors.