Canvas view settings
The canvas displays a preview of the video at the location of the playhead on the timeline. Use the following canvas view options when editing your video:
Change the canvas preview scale:
To view a preview of how the final video will look at the current canvas dimensions, set the canvas preview scale to 100%.
Click the dropdown on the canvas and select a percentage.
Use two-fingers to scroll up or down on the mousepad.
To move or pan the canvas:
Hold down the space bar while you click and drag the video area on the canvas.