Configure Structural Precast for Revit, wall and slab parts and assemblies, reinforcement details, and project drawings in your Revit project.
You launch the Configuration dialog by clicking Precast tab 
Configuration panel
(Configuration).
Wall Configuration
The wall node configures settings for solid structural walls. These settings include part information, segmentation rules, reinforcement definition, and project drawing defaults.
Slab Configuration
The slab node configures settings for solid and hollow core structural floors and slabs. These settings include part information, segmentation rules, reinforcement definition, and project drawing defaults.
Built in Parts Configuration
The Built in parts node configures settings for annotation and dimensioning in parts.
CAM Export Configuration
The CAM Export node configures additional data specific to each CAM file type.