You can navigate the Waveform area by Ctrl-dragging left, right, up, and down to zoom in and out. You can also scroll the waveform by Shift-dragging up and down.
There are two areas where you can scrub or shuttle through an audio file: on the audio waveform or in the Transport Controls:
To shuttle through an audio file’s waveform:
The speed at which the track shuttles varies depending on the distance between where you click, and how far you drag.
The further you drag to the right, the faster the track shuttles forward. The further you drag to the left, the faster the track shuttles backward.
To scrub through a track to hear the audio on a specific frame:
You can also use the Previous frame and Next frame buttons to scrub through the track frame by frame.