Github user sanjaydasgupta commented on the issue: https://github.com/apache/zeppelin/pull/2834 Here is one approach: define two new [zeppelin configurable properties](http://zeppelin.apache.org/docs/latest/install/configuration.html) as follows: 1) A boolean property named _zeppelin.interpreter.interpolation_ which must be set to _true_ to enable this feature at all. The default can be _false_, to guarantee that unaware users will never receive rude shocks. 2) Another boolean property named _zeppelin.interpreter.interpolation.silent_ which when set to _true_ causes the behavior in your _Option 1_, and when set to _false_ causes the behavior in _Option 2_. The default can be _false_ to enable a gentle transition into the feature. I am thinking if we need (2) at all, since (1) alone is enough for allowing users to start using the new feature in a safe and controlled way. Please let me know what you think. If you have a simpler or more effective approach please let me know.
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