1. Click Split, and when a scissor shape appears on the trajectory, press the left key to split. Like scissors, in the middle of video playback, press the space bar to stop at a certain frame, and then click the left button, and the whole video will be divided into two parts. Repeated operations can divide the video into three parts and four parts.

2. After using the segmentation tool, a video has been successfully divided into several parts. For the unnecessary part, select it first, then click the right mouse button to select Delete, and you can delete the unnecessary part.

3. When there is a blank on the deleted track, you must drag the video to connect all the tracks seamlessly. If the audio track is exported without spaces, there will be no black screen. Before exporting, press and hold ctrl+enter to start playing from the beginning without errors, and then export.

At the same time, you can use the dubbing track for commentary dubbing.