To capture cross-sectional cuts by moving a section box
 Create panel
Create panel  Animator
Animator .
.  Sectioning panel
Sectioning panel  Enable Sectioning
Enable Sectioning .
. Autodesk Navisworks opens the Sectioning Tools tab on the ribbon, and draws a section plane through the model in the Scene View.
 Mode panel
Mode panel  Box
Box .
.  Transform panel and click the sectioning gizmo you want to use (move
Transform panel and click the sectioning gizmo you want to use (move  , rotate
, rotate  , or scale
, or scale  ). By default, the move gizmo is used.
). By default, the move gizmo is used. Drag the gizmo to adjust the initial position of the section box in the Scene View.
 on the Animator toolbar to create a keyframe with the initial position of the section box.
 on the Animator toolbar to create a keyframe with the initial position of the section box.  on the Animator toolbar.
 on the Animator toolbar.