Forum:Converting a non-form page to an "Edit with form" page

What do I do to convert a page created in the old way to a page that has an "Edit with form" option?

Supplementary question that broke the camel's back and made me start this: Why do I sometimes click on a person link (e.g. a child) on a "with forms" page and get an ordinary "Create this page" page (with the new smart option of a blank page or a partly-structured page, neither of which offers "Edit with form")?

— Robin Patterson (Talk) 07:56, February 21, 2010 (UTC)