The angle of rotation up or down is also referred to as pitch; the angle of rotation left or right is also referred to as yaw.
To open the Yaw-Pitch Tool options
Scales the speed of the camera movement. The slider range is 0.01 to 10. The default value is 1.
Controls whether the camera movement is a Yaw-Pitch movement or an Azimuth Elevation movement.
Press Shift to constrain the camera’s movement.