Comments by jeffw82

Ya, as I thought, Live converts all incoming midi channels to 1 before it hits the first device in the chain, so that idea won't work. So, if you don't have a method to combine the controller/sequencer streams outside of live, you can create a live track for each channel for each controller/sequencer, outputting on the same channel to the loopback driver. It's a lot of extra tracks to do this, but you can group and collapse them to get them out of the way.
So, I use this with a MIDIHub which lets me combine multiple midi inputs into one midi output. When writing the description I assumed you could do the same with a loopback midi driver, and you can, except that for MIDI out on an ableton track is limited to one channel, it can't be set to just pass through the midi channels as received. So, I'll soon try to add a feature to set the midi out channel based on the channel received from the midi input to work around that limitation, may not be possible though.