Are we looking at the same device? The manual for the Tonex Pedal shows implements MIDI and has a number of MIDI commands.
The Tonex One doesn’t snow MIDI capability.
MD communicates over MIDI connections. If you are looking at the Tonex One, then without a MIDI connection there is no communication path for MD.
If you do show a MIDI connection is available, you can wrap these messages in a SysEx format, then use StreamByter to remove the leading F0 / trailing F7, with the +F option to remove enforcement of valid MIDI messages.