One of my colleagues suggested this idea.
My colleague has a workbook with a lot of calculated fields which all use similar formula, but different measures. He discovered that the template formula had an error, so now he has to go through all fields and make the same correction. He started, but got distracted a few times, and now he doesn't remember which were done and which were not yet done.
It would be great if Tableau could export a list of all calculated fields in the workbook, with their formulae and syntax highlighting, as rich text or PDF. This way one can look through the list and see what needs to be corrected, rather than open each item to check.
This would also be good for documenting the methodology of calculating this or that, to keep it consistent within the team, company, etc.