Editing : Making Selections : Selecting Track Material : Making Selections While Playing

Making Selections While Playing
Pro Tools lets you make selections during playback with the Up and Down Arrow keys.
To make a selection while playing:
1 Enable Link Timeline and Edit Selection (Options > Link Timeline and Edit Selection).
2 With the Selector tool, click somewhere near the beginning of the track in which you want to make the selection.
3 Click Play in the Transport window (or press the Spacebar) to begin playback.
4 When playback reaches the point where you want the selection to begin, press the Down Arrow key.
5 Press the Up Arrow key at the point where you want the selection to end. The selected range becomes highlighted.
6 To stop playback, click Stop in the Transport (or press the Spacebar).
To automatically scroll to the beginning of the selection (or to the location of the on-screen cursor), press the Left Arrow key. To scroll to the end of the selection, press the Right Arrow key.
While in Page Scroll or Continuous Scroll mode, making a selection in the Timeline or a playlist during playback as the playback cursor moves off-screen suspends page scrolling. To resume page scrolling and jump to the current playback location, click the Playback Cursor locator in the Main Timebase ruler (see Locating the Playback Cursor when It Is Off-Screen).