Selecting the correct vector component
Although 3 Vector layer components are shown in this dialog (Vector x, -y and -z) the vectors in the 2D map are using only 2 (!) components.
The DataNavigator automatically detects, which composition of components are correct depending on the type of cut you use.
For example, for a X-Y (horizontal) cut, the Vector x and Vector y components will be used whereas for a Y-Z (vertical) cut the Vector y and Vector z components are used.