Business Identity supports featured images on both posts and pages. This page demonstrates what a featured image looks like on a page with a Primary Sidebar (click here to see what a featured image would look like in full-width, no sidebar mode).
Adding featured images into pages is easy. Simply go into your page editor, click on the “Set featured image” link, and select the image that you would like to use as the featured image for your page.
After you have completed this step, the featured image that you have chosen for your page will be displayed on both your website and your edit page screen: