OK, so I have been beating my head against the wall for many hours and am getting nowhere fast. Rather than tell you what I have done and ask why it is not working, I am simply going to ask for an explanation as to how to do it.
I have 8 Gilbert Engineering Flake B 186 snowflakes (each with 186 nodes). I am controlling them, and other props, with three Falcon F16V3 controllers. With 186 nodes each, I need one universe (170 channels) plus 16 channels from another universe for each snowflake. Due to the layout of my show and the availability of channels, the second universe needs to be shared for multiple models. For example, for one of the second, shared universes, 16 channels go to one snowflake, 64 channels go to one side of my garage perimeter strip, 74 channels go to a different vertical strip, and the last 16 channels go to another snowflake.
So how do I do that? How do I use 1 full universe and a part of another universe for one prop? How do I select channels in the middle of a universe for another prop? For the 16 channels at the beginning and end of the universe that is shared for four models, the universes before and after will be the 170 node portions of the two snowflakes.
One last thing, using the methods I have tried so far, when I apply an effect to a snowflake, portions of the shared string (beyond the 16 channels that are supposed to be part of the snowflake) come on as if they are part of the snowflake model.