Is there a way of hiding the news (articles) that I have already read (or marked as read) in Akregator?

I cannot find that option, I could only find an option to hide feeds with no unread articles. I'd like to hide (or delete maybe) the articles I already read, no need at all for them to keep showing up.

Ok found it, I have to press the envelope in the search box and there I have the option of displaying only new or unread articles.
I suggest for this option to be placed in a more visible place.