1. New production: Click the new button with the word "New" below the video preview box to pop up the "New" dialog box, and select the vertical screen resolution in the video size drop-down box.

2. Import landscape video: Click the "Add Video" button, select a video file in the pop-up file selection box, and click "Open".

3. Add background picture Select the "Add Map" column on the left side of the "Overlay Material" panel, click the "Add Map" button, first import the processed PNG format picture through "Add Map to List", then add the picture to the video, and set the map duration to be consistent with the video duration in "Map Settings". This not only fills the upper and lower black edges, but also makes the video picture richer.

4. Copywriting: Switch to the "Subtitle Special Effects" panel, click the "up, down, left and right arrow keys" on the time progress bar of the preview box, then double-click the video preview box and enter the text content in the "Enter Text" box that pops up.