I´m working on application express 4.2.1.00.08 and I would like to create a web service via the "Enable RESTful Access" field, but it wont show up.
The "Enable RESTful Services" field under "Set Workspace Preferences" is set to "Yes" (Administration) and i started a new application (page is set to "Page Is Public") with a new interactive Report Region. Do i need to install the APEX Listener for having access to that field?
I encountered the same problem. Have you found a solution yet?