Is there anything that gives a "parent" button to comments? Like a tampermonkey script or something? Whenever there's a deep tree, I sometimes find it hard to

Is there anything that gives a "parent" button to comments? Like a tampermonkey script or something? Whenever there's a deep tree, I sometimes find it hard to know what comment people are replying to. A better visual indicator of the depth of the comments would be nice as well.