When installing ArchiCAD, don't do the Easy install. Custom install is faster and saves space.
So easy anyone can do it. Unless it doesn't work.
You're in an S/E window and you want to change something in the settings of that S/E. Go back to the plan, right? Nope, double-click the S/E tool in the toolbox!
Update: In AC10, right-click in the section window and choose Section/elevation settings.
The toolbar in Finder windows is customizable. Certain customizations I have stuck you with, and when they malfunction, you need to be able to fix them.