The following steps are only necessary if you have more than one picture attached to a blog post. If the "Blog posts Posts & pages" Pages" or "Top Stories Slider" macro doesn't find any labeled pictures it automatically uses the first image, that was attached to the blog post
Posts & Pages / Top Stories Slider
- Open the "Blog posts & pages" Edit the macro
- Define a label for the picture, that should be used to identify what picture will be used on the dashboard and add it in the field "Labels to find a image"
Add the label to the picture
- Go to the attachment list of your blog post
- Add the label to the picture you want to show on the dashboard
Different fallbacks to detect the right thumbnail