Originally Posted by eosrose
I've added custom metadata columns such as #genre and #wordcount (among others) and now I'm wondering if it's possible to somehow include this extra metadata in the output when I convert my epub to epub and select the "insert metadata as page at start of book" under "Structure Detection."
Find your calibre configuration folder and create the following folder(s).
Now go to the calibre program directory, on my machine it is
Copy the two files found there
to the same folder you created under your calibre configuration directory. Now you can edit the files under your calibre configuration directory to suit your needs.