Collaboration is ingrained into human nature, without it we, as a species, wouldn’t be able to build astonishing buildings like we have today. Fundamental to collaboration, however, is communication, which enables the coordination of big projects. To make the work on a project easier we use tools like FreeCAD. It offers possibilities to model objects, like buildings, but not exclusively, that shall soon be built. For that purpose FreeCAD supports BIM (Building Information Modeling). This project aims to integrate the BCF (BIM Collaboration Format), which is designed to communicate issues/topics with a particular model. These issues/topic can then be directly visualized in the design tool and don’t have to be searched for in the model, based on a description in a PDF file.