The image files that have been uploaded to CoRE can be moved to the order desired for the leasing pages, just by dragging and dropping the files. The Thumbnail image appears on the search page as well as in the gallery of media (images and video) on the building page and can be moved as well. 
Other media types can also be moved in the same way. At the building level,  PDF files can also be designated as  Plan, Brochure or Site Plan. If they have been tagged and published, they can then be easily downloaded from either the search or building page by visitors to the leasing pages.