I've put together a rough flow diagram showing all of the AT5 mixer's components and related signals. It's a bit more complicated than what's shown in the GUI Chain View. (I cooked this up this mainly to clarify for myself exactly what the mixer section is doing.)
The current diagram in PDF form is freely accessible here:
https://www.dropbox.com/s/1fdv8kr2pjks6hk/AT5%20Mixer.pdf?dl=1
I'm open to suggestions as to how to improve this document.