It pays to read the FAQ and Tips & Tricks docs in the Files section. The following from the latter:
----------------------------------------------------------------------
Turning Rechannelize On Via Sysex
Parameter Value Edit Command:
{F0h, 18h, 0Fh, dd, 55h, 01h, 02h, xx, xx, vv, vv, F7h}
dd = Device ID (probably 0)
xx, xx = Parameter Number, {LSB, MSB} <- so for 420, {24h, 03h}
vv, vv = Value, {LSB, MSB} <- so for 1, {01h, 00h}
- Aaron Eppolito
----------------------------------------------------------------------
--- In xl7@yahoogroups.com, "S. Lepore" <sleporester@...> wrote:
>
> I can set this from the MIDI menu but can't quite figure which sysex parameter sets this.
>
> Thanks again.
>
> Scott
>Message
Re: How do you rechannelize MIDI input via sysex?
2011-05-24 by S. Lepore