In the left navigation pane are the Basic Info, Operations, Callback Operation,
            Headers (which is selected), Request-Headers, Response-Headers, and Summary
            tabs. In the middle of the page is the Configure Headers section. The
            following fields are displayed.
            
               - Do you want to configure headers for this Endpoint?
- The Endpoint already contains SOAP headers, so we've selected
                  Yes for you. Selecting No will remove all Headers, with
                  options for Yes and No.
               
- Request Headers, with selections for SOAP Headers, Standard HTTP
                  Headers, Custom HTTP Headers, and Custom SOAP Headers.
               
- Response Headers, with selections for SOAP Headers, Standard
                  HTTP Headers, Custom HTTP Headers, and Custom SOAP
                  Headers.