Once the media has been added to your screen:
Click on the three dots (Actions) of the media you want to edit, then select Edit.
In the Crop tab, adjust the frame to precisely select the area of the image you want to keep.
Note: The crop frame automatically adapts to your project format: square (1080 x 1080), horizontal (1920 x 1080), portrait (1080 x 1350) or vertical (1080 x 1920).
The tighter (more zoomed-in) your crop, the more your media quality may degrade when generated in HD, as the reduced dimensions can result in a pixelated image.