I have done this, the method is as follows

Huawei P40

HarmonyOS2.0

Clip 9.9.0

< p>1. First click and enter the clipping software. Click in the middle of the home page to start creating.

2. Select the video material or photo that has been taken and import it.

3. If you need to add music, click Add Audio.

4. Finally, click to export a short video and it is ready.