Apple Logic Pro 9 - Manual (Page 199)

Assigning Key Commands to Computer Keys
This section shows you how you assign particular computer keyboard keys to Logic Pro
functions.
To assign a function to a key
1 Select a command in the Command column.
2 Click the Learn by Key Label button.
3 Press the desired key, along with the desired modifier key or keys (Shift, Control, Option,
or Command).
4 If you want to make another assignment, repeat steps 1 to 3.
5 Click the Learn by Key Label button again.
The Learn by Key Position function works in the same way, but differs in that it’s not just
a reference to an ASCII code that is stored, but the actual scan code of the key that is
pressed.
In practice, this means that you can, for example, assign different commands to the
number keys on the numeric keypad and the number keys above the keyboard.
This also means that the key position remains the same if you switch between different
operating system language settings, or different keyboards. For example, using a scan
code for a function assigned to the Y key on an English keyboard would function in the
same way if you switched to a German keyboard—which has a Z key in the same position
as the Y key on an English keyboard.
The only disadvantage is that the key code (a number), rather than the ASCII symbol, is
displayed in the Key Commands window. The ASCII symbol is more useful for reference
purposes.
To clarify the difference between these two functions, here’s a short comparison:
• If you use the Learn by Key Label function, and define only one key command for the
key, it will be used, no matter which of the two keys (either number 7 key, for example)
is pressed.
199 Chapter 8 Basic Operations