In some areas for roadway projects people are required to show ---C---- or ------F------ linetypes where the roadway daylights. Using corridors it’s possible to do this using the feature lines which are created during the corridor building process.
Go into the Corridor Properties, Feature Lines tab and select the appropriate Feature Line Style. One may want to have the Daylight Feature Line Style to one that doesn’t show up to not conflict with the Daylight Cut or Daylight Fill Feature Line Styles.
One problem with this method is that if the corridor is spaced far apart the cut and fill feature lines won’t meet at the C/F transition point. I usually add some additional corridor section samples to get the cut/fill feature lines to meet, or come close to meeting.