If an article has 3 or more images and additional sidebars and fact-boxes, changing article class will add a nice photo-gallery while keeping additional content high on the page. Here’s how.
1) select the article and open the properties
2) go to the ‘web’ tab in properties
3) select ‘A no sidebar with photo slideshow’ under design
1) Open the article to edit it
2) In the default Properties pane, select ‘A no sidebar with photo gallery.’
3) Save and close the article and recache it manually.