The online help document entitled "Creating XML Schemas" lists keystrokes that are not applicable for ES4. I find the support for ES4 seriously lacking. Much of it seems to be earlier versions of Designer.
I can barely spell XML, and I drink Java. I need to create an XSD file to load data from a static form created in Acrobat XI Pro or a dynamic form created in LiveCycle Designer ES4 into an Oracle database. I'll even be happy if I can get it into MS-Access.
Your question should be posted on the LiveCycle forum at http://forums.adobe.com/community/livecycle/general_discussions. This forum deals exclusively with Adobe FormsCentral.