A Signal flow monitor should let you see where your signal is going, if it gets split by how much, when it turns stereo etc.
I always feel, in more complex presets with mixed lanes, that I loose sight of where my signal gets routed.
Here come the new option, sitting next to the CPU monitor, “signal flow”.
Make it a overlay of a flowing path with a thickness that represents 100% signal flow, when a mixer is involved it gets thinner or splits into two or more thinner flowing paths, changes color when going from mono to stereo and back. As an overlay similar to the CPU monitor.