How do I set up drill down for relational sources in BI Viewer?

Setting up drill down for relational sources in BI Viewer is a two-step process.

First, you must add all of the dimensional levels you wish to the columns, rows, or arguments of the visualization on which you wish to drill down. Put the starting level for your drill down that the top and the lower levels beneath it, consecutively. An example can be seen here:

In this example, our drill path starts at Region which drills to State and then finally to Customer.

The second part of setting up drill-down is the enable drill down thru in the visualization section of the data menu of your visualization. 

With these steps completed, your visualization is now drill-down enabled.