Thanks, yes it's getting closer, I hope, to the solution. I want a private stylesheet which I will store as a template and reuse when needed for new projects of same kind, so ultimately would like to have several private stylesheets stored as templates for various types of projects. I will explore the links you gave and try again hope soon. Have you been able to use Private Style Definitions (PSD) and after selecting some new styles in PSD the new notebook on the right was showing them automatically? As it should following what they say in the Book. Thanks again for help.

Cheers, but this is the point. Using Private Style Definitions (PSD) after selecting them in Choose a Style nothing happens in the notebook I want to have the custom styles assigned to. I have attached the relevant pages from the Book which says that the changes should appear in the notebook. Doing changes to styles of each template I want to use for my various calc sheets manually is rather cumbersome and limited hence Mathematica provided the PSD options. Maybe you could try using PSD and see whether it works, or am I reading something wrong. Thanks

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