From the submenue BUILDINGS
you can
transform selected volumes to AREAL3D - buildings.
You can create volumes via
- pushpull-tool from faces
- via
AREAL3D wall tool from faces and surfaces, flat or sloped, as groups or as faces.
Select now those elements (terrain will be deselected) and transform.
Limitation:
Volumes connected with one vertical corner cannot be transferred in this version, errors can occure.