Midi IO expander

[ohho]

Hello,

I have microcosm hologram pedal I'd like to control through nerdseq.

The signal flow of my midi atm is: nerd out> microcosm in > ableton in, ableton out> microcosm out> nerd in.
I know that is correcrt because ableton does recieve midi messages properly and I've used this for a while in this configuration.

I'd like to control the microcosm pedal cc values with the nerdseq mapping.
However, I'm unsure what to use for the midi out settings on the mapping? 
Microcosm midi channel is 8

Thanks