It can show either enterprise synthetic or backbone data. Assuming you already have the backbone data integrated to your CAS you just need to assign it to your application in the business unit screen.
It is a tab over on the right hand side
You can either add it to an existing App or create a new one. If an app has both Enterprise synthetic and Backbone assigned to it the worst performing will be displayed as the icon but you can click on it and then see both
Hope this helps.