Autodesk CIVIL3D - CIVILDESIGNCOMP 2007 SLM CD Tutorials Manual page 321

NOTE The bottom axis controls the major and minor grid spacing.
4 Under Major Tick Details, specify the following parameters:
Tick Size: 0.2500
Y Offset: 0.1000
5 Click Apply.
The major ticks are longer, and the station labels move up.
6 On the Vertical Axes tab, make sure Left is selected as the axis to control.
NOTE The left axis controls the major and minor grid spacing.
7 Under Major Tick Details, specify the following parameters:
Tick Size: 0.2500
Exercise 1: Editing the Profile View Style | 309