I am not sure when this feature appeared, but once a book is hidden and you go to the list of hidden books, if you right click on a book you get two options: one to un-hide, and one to delete. A picture of this is on this page on the wiki.
I cannot find what "delete" does in the wiki. If I hit that, does that remove it permanently from my library? There may be a few that I want to do that to, but I want to be careful.
Can anyone help with this?
Jerry