The structure map is visible in the right portion of the window.
Here you will see the names and symbols of the selection groups and configuration groups in which the parts are incorporated. The symbols indicate in which configuration group and selection group the part is incorporated.
If there are higher levels in the structure map, you can maximize/minimize by double-clicking on a row or by selecting/deselecting the Maximized option.
Explanation of the Different Symbols in the Structure Map