When producing a notebook with both code and text, I often end up with pieces of code, or even entire chapters, that I don't want to be shown on the final output.
I generally hide or close them by hand, but this is time consuming, susceptible of error, and leaves big white spaces everywhere.
I'm searching for a way of, by tagging a cell or entire chapter (a "group head") as confidential, on the moment of the printing its content is substituted by a "content removed" warning cell (if possible, a different warning for a list of different tags that are included in the search).
Don't know if it can be managed on a style sheet specification (something that I know very little of) or just code (on a MMA theme that I also know very little), or both. I don't mind that a “cleaned” replica of my notebook is temporally generated, just for the printing formatting.