Sets whether links are allowed.
If LinksAllowed is Yes, then you can add links or notes to a page. The links can be a links to web sites, files stored on the local computer or on a remote computer, or links to pages.
On a page, the links and notes are displayed in FactBoxes. If LinksAllowed is Yes, then the Actions menu has a Notes item and a Links item. You use these to create and modify notes and links.