It can be extremely frustrating having to deal with Revit user interface (UI) issues while trying to learn Revit. Or, it can be very difficult to learn Revit when part of the UI is not even available! If you are just getting started with Revit, then you need to read this!
I believe that every Revit user should have these concepts mastered, especially if they desire to become a Revit guru. While the content here is basic, it must be understood by someone that wants to work in Revit or reach the level where they create families or even create Dynamo scripts to automate repetitive tasks.