Also, the notion of a Recipe for users, is often not a single transformation, but a series of transformations that ultimately change an aspect of their data. Do this GREL, then that GREL, then finally this last GREL snippet, where users would save those 3 snippets as steps in a single starred Recipe they created. Imagine that 
. It's lighter and less complex than our Undo/Redo and can be made portable and shared and hosted!
Anyways, continue to always think: How can I use my programming talents to make non-programmer lives easier in OpenRefine so they don't even have to know programming much if at all. 
OpenRefine = The original NOCODE data cleaning tool.