Described in more detail elsewhere, if you were interested in XS’s say across the floodplain, these can be provided with the measure/profile line tool. Multiple terrain models, simulation depths and more can be visualized on the same plot that resembles a typical 1D XS.
Or, a typical 1D profile of a stream can be produced using this tool by drawing along the streamline.
Yet cooler, as Jarvus mentioned, dynamic results (tables and plots) like hydrographs can similarly be extracted with the tool.