The highlights are the first two contents (videos or playlists) that appear at the top of each page.
To perform the replacement of any of them just follow these simple steps:
Search on the Learninghub for the video or playlist you want to feature and copy the URL.
On the page where you want to highlight the video do EDIT (in this example we will highlight on the home page), paste the URL and make ADD VIDEO.
Place the video / playlist in the desired section by dragging it. Delete the content you want to remove if that's the case.