[theducks]

Originally Posted by coliva

Thanks much theducks. Just found that in the Calibre preferences. I saw that field before, but with the default settings, I didn't recognize it as a directory entry.

calibre defauls usually only include fields. eg. {title}

The clue you can use more is the dash between
slash is a folder level

example:

{series[0]}-series/{series}/{series_index:0>2s} {title}_{id}_{authors}

creates a folder from the first letter of a series: series_A
Creates another folder within with the full series name: AnySeries
Inside that, it puts the title, preceded by the index 02-Title ...