First, visit this page: http://www.labnol.org/internet/design/edit-web-pages-like-wiki/3832/
Follow the instructions, it’ll tell you to drag a link over to your toolbar. Once you do that, you’ll have a button on your toolbar that let’s you edit any web page live from inside your browser.
Let’s open up an item from the compendium in its own frame on your browser.
Now, let’s hit the “Edit current website” button on your toolbar, and change this puppy up…
It’s just a little bit of a quicker way to do the editing on your stat blocks, without needing to paste unto Google docs for example. After you are done, “print screen” and paste the image where ever you’d like. Done and leveled up!