Any way to merge 2 cudtom columns?
Was given a friends Calibre library.
He has a custom column "Genre" which is Comma separated text, like tags, shown in the tag browser.
I have "Category" column which is Text, columns shown in the tag browser.
The Column type is greyed out and can't seem to be changed in both custom columns or I would change the type to match and the names to be the same and then import the smaller 6,000+ books library.
Any ideas how I can merge them or do I have to create a third column combining the contents of the 2 above?
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