After further exploring, I have found a couple of options that enable showing a list of posts with a short excerpt, rather than the entire blog content.
Set up a new page to display the blog posts list, add a ‘Posts’ element. Here I can set Number of Posts to show and a Custom Excerpt Limit Words.
The other option, is the ability to ‘Insert Read More tag’ into the blog content, limiting the text shown in Blog Category list view, before the ‘Read More’ link button.
