It would be nice to include more types of charts to choose from in the chart widget, such as box plot charts in WebApp builder.
In ArcGIS Pro, it is possible to create all sorts of charts: box plot, bar chart, line chart, scatter plot, QQ plot, histogram, profile graph. Currently, in WebApp builder, the chart widget will only let you choose from a bar chart, line chart or pie chart. If you want to display other types of charts, the only way is to create the chart in ArcGIS Pro or Excel or other stats tool and make an image out of the chart to be added in your App. However, it is sometimes essential that the chart is linked to the data or to be able to configure an action.
Imagine all the possibilities!