Sub-pages work as a homepage for multiple tiles to live underneath. They are created in the same way as any other tile type, and changing the type to sub-page within the drop-down selector. You will be able to create any of the other tile types within a sub-page to make the communications hub completely configurable.
When adding a new tile, standard edit options are available for changes. Please note that a new tile will also display a blank image screen with a suggested resolution; images are not required to be in this resolution, as images are resized by the content management system upon upload to the portal.
