To Edit Feature Lines With the Grading Elevation Editor

Click Modify tabEdit Elevations panelElevation Editor Find.
Select the feature line or an other object.
Use the options in the Elevation Editor dialog box to edit the elevations.
If no feature line rows are selected, the elevation of all points are updated. If the feature line is off of the surface, a warning message is displayed. If some elevations are updated, but one or more points are off of the surface, a message is displayed, indicating the number of points that could not be assigned elevations.