Collapsable Sections - The various settings on the Settings pages are categorized into different sections. The sections may be collapsed or expanded as needed to hide or display the settings to be changed. Since the Settings pages may contain numerous settings this helps you more easily located specific settings without having to wade throught the sections that you do not intend to change.
Figure 1 shows the Page Settings page displayed when creating a new page. Notice that the Advanced section is collapsed by default. To expand the section just click on the plus sign. Figure 2 shows the expanded section. The plus sign is now a minus sign which can now be used to collapse the section.