Ok I got home and tested this. It worked as I expected. I created 5 of Keiths new General DMX Models with 8 channels each and I defined Red to channel 2, Green to channel 3, and Blue to channel 4. I then created a group and added all 5 models to the group. I changed the "Default Layout Mode" for the group to "Single Line". Then I created a sequence and dropped a few different effects on the group. For every effect you need to change the "Render Style" to "Per Model Default". This create the correct type of render buffer for group effects to work on DMX models. The Butterfly effect works as well but what you will see is every DMX model is red because the first pixel in the Butterfly effect is always red. It does not treat the models as if they are in a single line of pixels it treats each model as if its the first pixel. So it can work this way but maybe shadow models give you better behavior. Just wanted to close the loop on this.