Right Sidebar Images
To create a page with a right sidebar image, select the option for "Sidebar" at the top of the Default section of a page.
Once you scroll down below the main body of the page to the Sidebar, you have to open the Right-hand Sidebar tab. Within that, open the section which is labeled "Image/Text Feature".
Within the Sidebar, select an image.
Once the image is selected, you must put in alternate text for the image. A caption, which will appear below the image in the sidebar, is optional.