ARCHICAD Elements can be exported either “by Class” or “by Material” (Surface). In both cases, the elements’ polygons are filtered out in hierarchy groups. To create a still image in CINEMA 4D Exchange, use the “by Material” option. All used materials form an individual group with all linked polygons in a quite simple structure, so replacing a material on the related surfaces becomes an easy task.
For freeform modeling, use the “by Class” method, which provides the freedom of easy element editing. All elements are grouped by type and element_id.