Expanded article editing box

For editing articles, It would help for there to be a button or something for getting a page with a larger box for just editing the article. This would be beneficial for both authors and editors. Currently the article editing page has many things in it, such as title, description and categories. Yet the majority of time spent writing and editing an article is for the article itself. We need a larger box for editing purposes. Ideally, the box would expand to fill the page. I think that would be an amazing improvement for authors and editors.