Using filled (choropleth maps) may be a little tricky. Every time you change the color range values you get a different map. That is why it is crucial to choose a proper method to define the legend ranges. You can find here three most common ways.
A dashboard is usually a collection of charts and tables combined with interactivity for the end user. Excel Map software allows the user to easily create interactive dashboards using pivot tables and slicers. This example is based on a Excel Map UK but can be applied to any of the maps.