Irregular "free-form" shapes can be modeled using the mesh tool. These items can be converted to roofs with this Add-On. To install "Mesh To Roof" Add-On, you should copy "Mesh To Roof" file into your designated Add-Ons folder. In this case, the add-on will be automatically loaded the next time you start ArchiCAD. Alternatively, you can save the Add-On anywhere on your hard disk, and load it through the Add-On Manager.
It is a mini cad system and with it you can make working drawings, designs etc.
