I often have a working notebook and a "publication notebook". Figures and results are copied to the publication notebook to which explanatory text is added. The publication notebook can then be saved as PDF to provide a good read for others.
I don't want the In/Out tags in the publication notebook so I go to preferences >> evaluation and untick the box with In/Out names. This, of course, removes In/Out tags from all notebooks. I don't want this I just want them absent from the publication notebook.
Is it possible to set some option so that one notebook does not show In/Out tags but others do?