Getting details just right on your designs without overloading your model can be a bit tricky. In this ARCHICAD In-Practice session, Jamie Ingram with UHA London demonstrates different techniques for modeling complex assemblies and construction systems. His methods include custom library parts creation, optioneering filters and the new railing tool. All the details can then be extracted directly from the model, and be kept live, in a true BIM workflow without requiring any 2D drafting at all. This level of detail is applied only in certain areas of the model, to keep the overall polygon count under control.