The OpenCart multi-store functionality is a useful feature that allows you to use one database for different stores (domains) for easier management. Usually same theme settings apply to each store that use identical theme. Pavilion however makes possible to use separate theme settings for every single store.
You can have different general settings, colors and fonts, style individually each website area (header, menu, intro, content wrap, footer), create custom layouts, page content and sidebars. All this lets you manage unique stores under a single administration panel.