QuickStart Video on Revit Section Box
This QuickStart Revit video provides brief demonstration on how to apply in-built section box tool in Revit for rendering section cuts. Section Box is actually a productive tool that facilitates to get entry to the centre of the model.
You can use a section box to clip the viewable portion of a 3D view. When you enable a section box in a 3D view, the only change to the view is the addition of the section box. The following image shows a 3D view with a section box enabled.
Once the section box is enabled, its extents can be changed with drag controls in the 3D view or from other views.