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Chapter 2 Customizing Controller Assignments 49
If you choose the Fader Bank, Index, Audio, Software Instrument, Bus, Auxiliary, Output,
or Master setting in the Channel Strip pop-up menu, the following two parameters
become available:
 Number field: A 0-based offset, which is added to the channel strip number. The
typical use for this field is for sequential controls: Fader 1 uses offset 0, Fader 2 uses
offset 1, and so on.
 Parameter field: Text description of the addressed parameter. Can only be set by
choosing the Logic Pro > Preferences > Learn Assignment for <parameter name>
menu item. Note that for plug-in and instrument parameters, Parameter Page offsets
apply, allowing you to shift the parameter addressing up and down by page.
Key
Choosing the Key class lets you use assignments to emulate keystrokes on your
computer keyboard. You can enter the key to emulate in the Key field, which appears
below the Class menu. This is not case-sensitive.
Key Command
Choosing the Key Command class lets you use an assignment to perform a key
command. You can enter the desired key command in the Command field, which
appears below the Class menu. Some key commands provide on/off or enabled/
disabled feedback.
If you want your key command assignment to be executed repeatedly, select the Key
Repeat checkbox at the bottom of the Controller Assignments window. For further
information, see “Key Repeat Checkbox” on page 54.
Click the Show button to open the Key Commands window. The key command shown
in the Command field is automatically selected/shown in the Key Commands window.
Control Surface Group
Choosing the Control Surface Group class allows you to set a property for the control
surface group (that the assignment belongs to). When you choose this class, a
Parameter menu appears below the Class menu. This menu allows you to choose one
of the options described in “Control Surface Group Parameters” on page 23, or one
from those listed in the following table.