How to change the pages that Featured Content points to?

The title of this question already appears in this forum. Unfortunately, it was hopelessly ignored and needs to be revisited. In the end, the answer was sent as a private email! No help to the rest of us... After switching from the free to the pro version, three featured blog posts appear on my home page. This is a great feature, but I would like to select which posts are featured. Currently, the theme automatically selects these posts. Please tell me how to select these posts myself?