MCREW allows users to view a "drill-down" for both operations and crops that allows the user to display a popup screen that makes many of the specific operation or crop/residue parameter values viewable or editable. The operation parameters specify how WEPS operations simulate soil and biomass properties that influence wind erosion. Similarly, the crop parameters specify how WEPS simulates crop planting, growth, and harvest, as well as residue decomposition. The specific content of these screens depends upon both the type of crop or operation and specific configuration file settings. The configuration files describe which parameters are viewable or hidden to the user and, if viewable, whether or not they are editable by the user. In addition, for each parameter that is displayed, the prompt information for the parameter is described in these configuration files. Drill-downs are cell specific.