It's going to be hard to learn *everything* in one video, so they are spaced out. Kyle will take you through creating menus, widgets, writing content, etc.

The best way to learn extra stuff is to decide what you want to do, then ask a question, and someone can tell you if it's possible, not possible, or where to find the training on how to do it.

All you need is to follow the lessons, preferably Certification courses first. Things will come in place if you follow it.