Make Downloading of data as CSV/TSV configurable

Zeppelin allows users to download data from a query as a CSV/TSV. This functionality is available  once a query is submitted through hive, jdbc, spark sql and others. It will be great if this functionality is configurable and can be turned OFF/ON. There are companies with strict security policies and does not allow users to download data from data sources for security reasons. 

Is it possible to add this functionality to zeppelin-web? Line of codes affected are as follows.

• https://github.com/apache/zeppelin/blob/4eea33ad57addcab42ce8fd88df19624be729063/zeppelin-web/src/app/notebook/paragraph/result/result-chart-selector.html#L76-L94
• https://github.com/apache/zeppelin/blob/7dc4dbea5a9b49d66113275ad1ffd31abe1d1d4d/zeppelin-web/src/app/notebook/paragraph/result/result.controller.js#L851-L890