Use a Section Box to Cross-Section a 3D Model for the First Time
Click Viewpoint tab > Sectioning panel > Enable Sectioning
.
Navisworks opens the Sectioning Tools tab on the ribbon, and draws a section plane through the model in the Scene View.
Click Sectioning Tools tab > Mode panel > Box
.
The box is now visually present on the screen, with the move gizmo enabled by default.
Drag the gizmo to box-section your model along the axes.
To save the current sectioned viewpoint, click Sectioning Tools tab > Save panel > Save Viewpoint
.