Apple Logic Express 9 - Manual (Page 552)

To change the start or end point of an existing selection
Do one of the following:
µ
Shift-click in the waveform display to move the start or end point.
µ
Shift-click-drag the start or end point of the selected area in the waveform display.
Using either method, the proximity of your click—to the start or end of the selected
area—determines whether you change the start or end point boundary. The closest one
wins …
Tip: If you hold down Option-Shift, the more distant selection boundary is changed (rather
than the nearer).
To move the selected area
µ
Option-click (the pointer turns into a two-headed arrow), and drag to move the whole
selection, without changing its length.
Using Transient Markers to Make Sample Editor Selections
You can use transient markers to select part of an audio file for editing purposes.
Note: To do this, you first need to activate Transient Editing mode in the Sample Editor.
For details, see
Using Transient Markers to Edit in the Sample Editor .
552 Chapter 17 Editing Audio in the Sample Editor