Thru Settings Check Send MIDI Time Code in MIDI Thru if you want to send MTC data from your record source to the Output assigned to MIDI Thru. Check Send Pgm Change in MIDI Thru if you want to send program changes from your MIDI controller to the Output assigned to MIDI Thru. Check Use slow method for 'All Note Off' if you want Metro to send the more data intensive All Notes Off messageacross all available MIDI ports. Other General Preferences options: Interpret Overlapped Notes As Middle C Is Note Colors See Also: Timing Preferences Buffers Preferences