Editing : Edit Modes and Tools : Using the Smart Tool : The Smart Tool in Waveform View (Audio) or Clips View (MIDI)

The Smart Tool in Waveform View (Audio) or Clips View (MIDI)
The following capabilities are available with the Smart Tool when working with audio tracks in Waveform or Blocks view, or MIDI or Instrument tracks in Clips view:
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For the Selector tool, position the cursor over the middle of the clip, in the upper half of the clip.
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For the Grabber tool, position the cursor over the middle of a clip, in the lower half of the clip.
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For a fade-in or fade-out, position the cursor near an audio clip’s start or end point, near the top of the clip. Once the Fade cursor appears, drag into the clip to set the fade length. The fade is created automatically with the Default Fade Settings (in the Editing Preferences page).
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For a crossfade, position the cursor between two adjacent audio clips, near the bottom of the clip. Once the Crossfade cursor appears drag left or right to set the crossfade length. The crossfade is created automatically with the Default Fade Settings (in the Editing Preferences page).
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To temporarily switch the Smart Tool to the Scrubber, place the cursor over the clip so that the Selector tool is enabled, then press Start (Windows) or Control (Mac).