CameraNavigationCirclesModifierKeyToPreserveAttitude Property

Gets or sets a modified key that will preserve the Attitude angle when clicked on a horizontal axis (X and Y in the common setup). Default value is Control. This means that if user holds down Control key and clicks on +X axis, the camera will rotate to X axis while preserving the existing Attitude (will not set Attitude to zero). To disable this functionality set this property to None.

public ModifierKeys ModifierKeyToPreserveAttitude { get; set; }