[Ahu Lee]

Originally Posted by kovidgoyal

If you wan tto create a column that shows data from other columns it has to be of type "Column built from other clumns" and you have to specify a template for it. https://manual.calibre-ebook.com/template_lang.html

Great. Thank you, I'll look into it. But what do I do if the lookup name I want to use is not related to any other columns data. For example, I'm particularly interested in "author_sort" (I've found it on "Title/author/series" tab of "Advanced search dialog"). Should I still use "Column built from other columns" in this case?