How do I drill down hierarchically?

[vibpatel]

I have a Stacked Bar Chart with cross-report enabled that I use to drill down on a hierarchical data however the related graph of type Line chart that uses a legend to represent the hierarchy.  The line chart is as follows:

Legend: Represents hierarchical data.

X axis: Time (Date range)

Y axis: Percent (0-100%)

However when I drill down using the Stacked Bar Chart it does not drill down on the Line chart. Both visuals use the same 

hierarchical column selected with the same structure however for the graph a legend can not have multiple values as a hierarchy.

Is there any work around for this? 

[amitchandak]

@vibpatel , Not very clear. But Drill down is specific to a visual/chart. Drill across can filter/fill other visuals