Building 3D Scenes: SimLab Composer provides the user with all the needed tools to build 3D senses from existing models. In addition to the draggers found in modern 3D applications to place models in the scene, SimLab Composer offers unique tools like snap to object and snap to ground to make building 3D scenes intuitive and fast.
SimLab Composer maintains the assembly structure of imported 3D models, this enable the user to select the level to work on (face, body, part, subassembly or assembly). Many more features.
The "Download" link downloads a unified installer which allows you to experience the different feature levels of SimLab Composer. The application is available for purchase at four different feature levels--PDF, Rendering, Animation, and Automation--whose pricing can be compared here.
Note: Although Finder indicates no version number for this application, the developer refers to it as version 2015.