1. First open the videoleap software in your phone, and then select "Clip". Select the video in the mobile phone album and click "Import".

2. You can choose the screen scale as required, and then click OK. Slide the ribbon below the video to the left, and then click Mosaic.

3. Select "upper left corner" here, then pull the double arrows in the box in the upper left corner to resize the mosaic, and then click Remove. Click √.

4. Finally, confirm "Generate" directly, remove the mosaic and click the small print at the bottom and "Save to Album Only".