Apple Logic Express 9 - Manual (Page 648)

This transmits control change message #121, with a value of 0 (reset all controllers), on
all MIDI channels and outputs used by defined instruments. This neutralizes all MIDI
controllers, such as modulation or pitch bends.
To set all MIDI channels to their maximum volume
µ
Choose Options > Send to MIDI > Maximum Volume (or use the Send Maximum Volume
key command).
This transmits a control change message #7 (main volume), with a value of 127, on all
MIDI channels and outputs used by defined instruments.
To send all program, volume, and pan settings from all external MIDI instrument
Parameter boxes
µ
Choose Options > Send to MIDI > Used Instrument MIDI Settings (or use the Send Used
Instruments MIDI Settings key command).
This resets your sound sources, if unexpected program changes occur mid-performance.
To automatically send instrument settings after loading a project
µ
Turn on the Send After Loading Project: Used Instrument MIDI Settings option, in the
File > Project Settings > MIDI > General pane.
648 Chapter 22 Introduction to MIDI Editing