[Amalthia]

Originally Posted by ownedbycats

Try ^Additional .*

Unless the question mark being inside the quote wasn't a mistake, then use ^Additional\? .*

I think I figured it out.

Here is what worked:

freeformtags,genre=~Additional.*

I'm not sure what =~ means but I know != excluded all genre's except the ones that started with Additional.

I'm going through the calibre regex reference guide to see if there is a list of these selectors.

Amalthia