The video edited by yourself is irreplaceable in poplar, which is a matter of method.

1. Open the incision and click Start Creation.

2. Select multiple videos, and then click Add to Project.

3. If you want to replace the material during editing, click to select the video track to be replaced, slide to the left in the toolbar below, find it and click Replace.

4. Select new material, and pay attention to the fact that the video needs to be longer than the replaced video.

5. Select the video on the video track, and then click OK.

6. Therefore, the material was successfully replaced. After editing, click Export.