Quantification supports model (automatic) takeoff and virtual (manual) takeoff.
Model takeoff uses the properties embedded in the design source files to create takeoff data. It extracts the objects from the model and displays them as Items in the Quantification Workbook.
Perform virtual takeoff to add takeoff items that are not linked to a model object, or where an item appears in the model but contains no associated properties. You can use measure tools in conjunction with a virtual takeoff, and associate a viewpoint with the virtual takeoff Item.