Ever wished, you could see the featured image or excerpt directly in the posts lists? Or the filesize and dimensions of images in the media library? With Admin Columns you can configure the columns of posts, pages, media and even custom post types, to fit exactly your needs.
Extract from WordPress.org
Manage and organize columns in the posts, users, comments and media lists in the WordPress admin panel. Transform the WordPress admin screens into beautiful, clear overviews.
https://wordpress.org/plugins/codepress-admin-columns/