What is the problem or goal you're trying to solve or accomplish?
The Drill to Detail By action only selects a single dimension currently. However, with the introduction of the Interactive Pivot Table, users can sort the dimension hierarchy. The expectation of the Drill to Detail By action in the Interactive Pivot Table is that it respects the hierarchy, not selecting the whole single dimension.
How are you solving it currently?
Currently not possible.
What is your recommended solution?
Limit the Drill to Detail By action result to respect the current hierarchy.