I can't see if a serie is hidden

When I look at a serie I have seen episode’s of, I can’t see if the serie is hidden. The button of hidden always stay the same. Hidden or not.
And the only way I can remove it from hidden, is scrolling through the hidden map.
I would like it if the pictogram of ‘hidden’ would change when it’s hidden. And that with the same button I could remove it from hidden again.