Each new MIDI note is cycled through the number of selected channels.
Example:
5 outputs are selected.
If a solo line is played each new note will cycle to the next channel and back to channel 1( 1,2,3,4,5,1,2.....)
If, say, a 3-note chord is played repeatedly, the notes will be split up and cycled though the channels thus:
1,2,3
2,3,4
3,4,5
4,5,1
5,1,2 and so on
On the panel of the module, we can have selectable MIDI channels for the outputs.
Transposition(this is important) and delay(if possible) parameters would be displayed for each channel.
You can refer to the Yamaha TX-81Z performance patches for an example of what this could do.
I used this "effect" a lot when I had the TX-81Z.
I like to use such randomisers

I know this type of module is possible to make. Or is something out there that I missed?
Cheers
Paul