Zoom the Timeline
You can zoom the Timeline in order to easily find frames and accurately place edits.
To zoom the Timeline
In the area below the Timeline, do one of the following:
Click the Zoom in or Zoom out icons to adjust the zoom in increments.
Drag the slider between the Zoom in and Zoom out icons.
To view the entire Timeline, spanning the length of the video, click the Automatic Overview button. You can return to the previous zoom by clicking this button again.