Selecting Audio - the basics
The easiest way to select a region of audio is to click the left mouse button anywhere inside of an audio track, then drag (in either direction) until the other edge of your selection is made, then release the mouse.
If Selection tool is not selected (default setting), choose from Tools Toolbar, below:
Selecting the whole of an individual track
The whole of an individual track can be selected by clicking in the Track Control Panel to the left of a track.button in the
Selecting the entire project
You can select the entire length of all tracks on screen with Ctrl + A (or ⌘ + A on a Mac).or use the shortcut