Why can't I see the robot.txt file in Preview?

RapidBot creates a robots.txt file that should not be read from others then Web crawlers.
That's why pushing the "Preview" button you'll get this message:

  • "There's nothing to see here. This page is a controller for RapidBot and should be hidden from menu in the Inspector. A robots.txt file will be created on export. Please refer to RapidBot documentation for further details."

Hide the RapidBot page from the menu. Go to Page Inspector > General and un-check "Show in menu".