My notebooks have a non-standard In/Out labels.

They look like this: enter image description here

I changed label style so long ago, I can't remember how I did it.

I've tried changing the CellLabelTemplate option, but that didn't work.

How can I set it back to the original behavior?


1 Answer 1


The option is called EvaluationCompletionAction. Use the following to get the default behaviour:

SetOptions[$FrontEnd, EvaluationCompletionAction -> {}]

or the following to turn on the timestamps again:

SetOptions[$FrontEnd, EvaluationCompletionAction -> {"AddTimeStamp"}]
  • $\begingroup$ Bingo! That was the one. I don't know how I found that Option in the first place. $\endgroup$ Apr 2 at 17:47

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