One key that is used continually in ARCHICAD is the ESC (Escape) key - especially by ex-AutoCAD users - you know you do it! Why though? What does it do? Does it do what you expect?
It is important to know what this key does and why, or when, you should use it.
The following things happen when you press ESC - and keep pressing: Exit numeric input Exit navigation (Orbit, Explore) Remove fixing Remove Snap Reference Exit input Deselect all Remove Marquee Change to Arrow tool