1. Download the desired cover to your phone, and then open the story album on which you want to put the cover.
2. In the history that opens, click on the "More" button below. A menu with buttons will appear.
3. Click on the "Edit highlight" button
4. In the window that appears, click "Edit Cover"
5. Click on the small icon with a picture at the very beginning of the list of stories.
6. Select a cover from the gallery and it will appear in the editor. Zoom out and move the cover if necessary.
7. Click "Finish" and the cover will automatically install!