You wouldn't need the breadboard in the schematic view... it would be used just like a standard breadboard that has no schematic view. It would be best to start with the breadboard .fzp then add all the other pins. Only the added pins would need to be in schematic view. Also it would be nice to create the sch.view with sub parts (LED, Power Supply, RGB LEDS, LED Screen, Power and I/O, LED Matrix, Stitches, and Push Buttons) as a sub part. Take the breadboard image, Uno, LEDs, Power Supply, etc. images and past them all on the breadboard .svg. I think the only part that you would need to draw up is the power supply. The rest are in Fz. Hide the PCB image which is very simple to do..
That should keep you busy for at least a week or two... 