Autodesk CIVIL3D - CIVILDESIGNCOMP 2007 SLM CD Tutorials Manual page 807

Curve label style changed
Change the label style of a group of label objects
1 Click the 0+220 station label.
Grips appear on all the station labels, indicating that station label 0+220
is part of the station label group.
2 Right-click the label. Click Properties.
3 On the Properties palette, in the Major Station Label Style list, select
Parallel With Tick.
The label style changes for all major station labels on West Street.
4 Press Esc to deselect the major station labels.
Exercise 5: Changing a Label Style | 795