Midi Auto Channel on multiple Elektron machines

I get Midi Auto channel, works well on a single machine etc, how can I setup a number of Elektron units with old midi channel standards, atm when I choose Ch2 it play on other machines despite Auto Channel being, say Ch14 on the other machine?

DN = 16 Auto channel
DT = 15 auto channel
OT = 14 auto channel
etc
etc

I’m using Keystep 37 into a Blackbox sampler to a Midi soln Quadra thru with Midi out per pad to the Elektron units I want to send notes too

TIA