Setting up a video wall is not difficult. But you can only play a slide show (photos) or video. There is nothing else the screens they can do in that configuration. You cannot have scrolling RSS feeds etc. If you want to have this felixibility, you will then use a donor screen, organise a schedule with the appropriate template, get a VGA splitter across all the screens and set them as appropriate. Ask your dealer. They should be able to help you.
Bill