Thanks for the observations and information, food for thouight. I suspect that Gil has hit the nail on the head for me, as I do not want to use all the "fancy" features of the controller, it is just a dumb data handling device as far as I am concerned. Coming from many years of Vixen 2.1x, I still prefer to do all the "smarts" so to speak, in the sequencer and then manually tell the controller what I want it to do! In this case the controller has nothing to do with the initial section of the first model anyway as it's data arrives by ESP8266 Pixelstick WiFi, hence my question - am I over thinking the setup !
In answer to one comment, once this setup is configured and "organised" it will not change, as it is a physical fixture/element in the display.
Effectively I require four groups of approximately 100 Pixels each, all in a contiguous set of channel numbers across the fence line. The snag being that the first 50 of the first group must be fed by the Pixelstick, while the rest, including the second section of the first group, will come via cable from the Falcon F16V3.
I need to have all of these Pixels broken up into four sections/models, due to historical sequencing permutations that I will need to transfer onto the Pixels in some instances, within old sequences, to keep the overall "Look" of the display coherent, while still allowing Pixel effects to be applied as, and when, appropriate.