Thank you very much for your reply.
Quote:
Originally Posted by chaley
You don't give a context for where you want to use this value. I am assuming you want it in some save- or send- template.
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Yes, I am sorry. I want to use it in a metadata plugboard, so the easiest would be to use a custom column (built from other columns).
Can I use a program right in the custom column template, or do I have to create a user defined template function? I am new to calibre and python, so please forgive my dumb questions.