Expending multiple resolved discussions should be easy

What

A toggle somewhere which allows all collapsed discussions to be expanded.

Why

Currently I frequently have to live edit the CSS on a page to prevent them from being hidden.

• Often I want to search for something on the page using the browser's find dialog and it doesn't scan hidden elements
• Some times links to comments don't work unless the targets are expanded
• Some times it is useful to get a good overview of a discussion before adding a comment or reviewing something. I often see comments repeated in the later stage of a review which have been resolved previously.