When you import models into Autodesk Showcase, they may not all sit on top of the floor. For example, if you import many models, you may need to move the floor or some of the models to rest on the floor.
Move multiple objects to rest on the floor
The selected objects are “dropped” to the floor. They are moved as a group, and end up resting naturally on the ground.
Move the floor
The Set Floor Position window appears.