im not familiar with this addon so i dont think ill be much help there, but i do use a similar one to auto mark "treasure" items as junk called "dustman"

this one has tons of configurations to auto mark just about anything as junk, and then has an option to auto sell the junk at a merchant which has made bag management a ton easier

i am assuming this is why you wanted them to fill into their own category so you could quickly sell them, which is why i suggested an alternative lol