Scripter MIDI channel mapper

The simplest thing to do is use a little app called "MIDIPipe". It will allow you to do what you want without any scripting (as well as doing loads of other useful midi manipulations.

It's here http://www.subtlesoft.square7.net/MidiPipe.html

Copy and paste this code into the Scripter plug-in:

let inChannel = 1          //Use the channel you want to affect.
let outChannel = 10        //Use the channel you want to output.


function HandleMIDI(e){
  if (e.channel == inChannel) {
  e.channel = outChannel;
  }
  e.send();
}

This is changing channel from 1 to 10.

Change the channels to whatever you need.

Script looks fine to me but it will need implemented on a channel by channel basis? Depends what the OP is wanting to achieve.

Yes.

Or you could change it to:

if (e.channel) {…

Hope that works.