Using this menu you can create cross-section views (clipping planes) of your presentation.
To start, click on the New button.
Now you can define the parameters of your cross-section. You can define them either in Non Structured or in IJK (Structured) way.
Choosing Non Structured tab you select the clipping plane by adjusting Orientation (X-Y, X-Z or Y-Z); Distance between the opposite extremities of the object (if it is set to 0.5 the object is split in two halves); and Rotation (in angle degrees) around X (Y to Z) and around Y (X to Z). If the Show preview button is on, you can see the clipping plane in the Object window.
In the IJK (Structured) mode the clipping plane will be oriented completely perpendicular to one of the Axes. Index gives you the choice of several possible positions of the plane. If the Show preview button is on, you can see the clipping plane in the Object window.