More than any other CMS documentation course the CMS Configuration & Design course is targeted at advanced users. There are a very small number of features found under Configuration or Design that normal site administrators may need to deal with and those will be extensively documented but even these tools have some advanced features that are just don't need to be understood by most administrators. Your designer will handle most of this in the setup of your CMS and really if any tweaking is needed in the future it is best to consult your designer as what will be minutes to them could be hours to you.
This course will intentionally be the last to be completed. We are focusing on the systems we expect users to be involved in first and then working back to the more techincal features and core design systems that most users never interact with.