Apple Logic Pro 9 - Manual (Page 211)

Using Selection Techniques
Whenever you want to perform an operation on one or more regions or events (or other
elements, such as Mixer channel strips), you first need to select them. Selected elements,
regions, or events are displayed in an inverted color scheme with a highlighted name, or
in a user-assigned selection color.
A region or event selected in one window is also selected in all other windows that display
that region or event. For example, a note event selected in the Piano Roll Editor is also
selected in the Score Editor and Event List. The region that contains the selected event
is also selected in the Arrange area.
Changing the window with key focus doesn’t affect the selection (as long as you don’t
click the window background, which deselects everything). Be sure to click window title
bars when switching between windows.
Tip: Don’t forget about the Zoom functions when making your selections, as high zoom
levels can make precise selections much simpler.
Selecting Individual Elements
You can select individual regions or events (or other elements, such as Mixer channel
strips) by clicking them with the Pointer tool.
You can deselect them by clicking the window background, or by selecting another
region, event, or element.
The Select Next Region/Event, or Set Marquee End to Next Transient key command (default
assignment: Right Arrow key) and the Select Previous Region/Event, or Set Marquee End
to Previous Transient key command (default assignment: Left Arrow key) provide a quick
way to step between (and individually select) regions or events.
In the Arrange area, pressing any letter key selects the first region with a name that begins
with the chosen letter (as in the Finder), provided that no key command is assigned to
the key.
211 Chapter 8 Basic Operations