A monster tutorial that aims to explain and demonstrate what Opus does and what makes it so special and powerful.
Includes overviews of the important features, both big and small, and a section providing examples of the custom buttons you can create to automate tasks using Opus.
HTML format, with screenshots and Flash video used where appropriate.
You can also download this tutorial for offline reading.
Author: Leo Davidson
Link: http://www.pretentiousname.com/opus