Using the Map Room, there may be multiple data indicators that you'd like to view on a map. To add a data layer to your map click + Add Data in the upper right corner of the Data Layers window. 

Clicking this will pull up a new menu where you'll be able to search for a data indicator to add to your map. Once you find the indicator you'd like to view, click Add to Map. 

If you add multiple indicators, be aware that you won't be able to view more than one at a time. If more than one data layer is applied, the map will default to the more granular indicator. To turn each data layer on and off, click on the checkbox next to the desired indicator you'd like to view.