Inspector: Not shown in the above illustration is the Inspector,
which allows you to see and change the properties for the selected
control. This area of the Main window is shared with the
Library. You can show the Inspector by clicking the Inspector
button on the toolbar. The Inspector shows information about
the selected item in the Navigator or Editor. The contents of
the Inspector changes as you click on different items. You
change an Inspector value by entering a new value in the field
to the right of the field label.