NorthStar 961X Operation And Reference Manual page 213

Chapter 10 - Waypoint and Route Navigation
Steer screen
The standard STEER screen is a simplified version of the 3-D
STEER screen, displaying the same numeric information, but
without the perspective view of the course line and nearby
waypoints and avoidance points.
Displaying the 3-D steer screen
To display the 3-D STEER screen, press the STEER key (twice,
if necessary).
961 Operations and Reference Manual Rev. D Page 10-3