Under the Editor Settings tab, there is a “MIDI Thru Check” function.
You can use it to test if the SysEx message is going through all the connected device. How it works is that, if you have set the MIDI Thru correctly on the MC6 PRO, for example like this:
Here’s what will happe
- The editor sends a SysEx messages via USB
- SysEx gets passed through to your DIN5 port through all your devices
- MC6 PRO receives the SysEx message and then sends it back to the editor
- Editor will display that the SysEx message is received.