In previous editions, in a 3D model, you could view a model in all its planes. However, you could not see the dimensions, annotations and other details that were placed on the sheet models. To view these details, you needed to navigate to the sheet models manually. But now you can view the sheet graphics in a 3D design model, in place, automatically. This capability is also called hypermodels . You can work with already placed callouts and markers in a file but you cannot add new callouts.

Some of the benefits of using callouts in 3D are:

• Callouts make drawings easier to understand and interpret.
• The effectiveness of project communication is increased, leading to better informed decisions.
• Project quality is improved by the increase in speed to insight. This is beneficial through all phases of project: design, review, construction, operation.
• Callouts make 3D design models more reliable, effective and easy to use for construction, operation and so on.