The purpose of the dashboard is to give a quick insight into the data for Quality Assurance. They are not a substitute for an analysis system such as Excel, or a GIS.
Clicking on the settings icon will open the same dialog that was used in creating the panel. Clicking on the “data view” will open a side panel that allows selection of map layers or sub forms in a survey. For a graph created from select question repsonses, the choices that are shown can be selected.