Double-click on the existing video file or player or click on it and then select “Edit” from the bubble menu to open the editor tool.
4. Select the Video Track
Click on the video track in the timeline to select it.
5. Mark the Crop Area
In the timeline, hold down your right mouse button and drag to highlight the portion of the video you want to keep. Release the mouse button once you've marked the desired area.
6. Crop the video
Click the “Crop” button to remove the sections of the video track that fall outside the marked area.
7. Repeat as Needed
Repeat this process as many times as necessary until you achieve your desired result.