General properties
Teaser: Use the Teaser Text field to enter a brief description of what the page is about. If the page is displayed in a search results list that displays teaser text, the brief description you enter here will be displayed.
KBArticle pages: If you are creating a knowledgebase article (KBArticle) page, the teaser field is required. The text you enter here appears in the search results and provides a snapshot of the answer or solution to the article. See Creating KBArticle pages.
Enable Multiple Definitions: This field is only displayed on Dynamic Layout pages and pagelets. It is provided so that you can create multiple sections on the page/let for defining how links are handled and displayed. YOU MUST SAVE the page once you have checked or unchecked this box and then proceed to configure definitions.
Add Definition: (Dynamic Layout page only) This button is displayed once you have checked the Enable Multiple Definitions checkbox and saved the page. Click this button to create any number of Definition sections on the page which you can configure separately. See Creating dynamic layout pages.