On second thought: blank channels don't cost me anything. I can add some to the figure and provide scripts that generate them on-the-fly. Then it will be up to vendor which system they use.
I can even take an inj pose that uses the builtin channels and map it onto vendor-specific ones.

So, how many channels do you want, and how should I name them?

-- I'm not mad at you, just Westphalian.