Thanks, Matthieu.
Is there any chance this could be configurable in a future firmware update? I ask because while this is great for a single-controller setup, once you add a few more, it's not long before you have two controllers that are both hard-coded to MIDI Ch 1, or – as in my case - you have one with Ch 1 as the default, and while you can change the default, it needs to be changed every time the keyboard is turned on again.