I did the same build except for LL fans. I used QL120 fans and both the Lighting Node Core and the Commander Core are connected to the Commander Pro USB ports. Then the Commander Pro to the Motherboard. iCue will show you all 3 controllers. Commander Pro for LL120 speed control, Lighting Node Core for LL120 RGB control, Commander Core for AIO speed control for pump and the ML120 fans and RGB control for the pump and ML120 fans.
Basically in both scenarios iCue should recognize every component.