About the Product Structure (Tree)
Like many other CAD solutions, the product structure in Pixyz Studio designates the scene tree (or scene hierarchy), which provides a structured view of the occurrences of the scene.
When a CAD/3D model is imported in Pixyz Studio, the Product Structure reflects its hierarchy as it was designed in the CAD/3D solution that produced it.
Then, this hierarchy can be modified to fit the user's need, interactively or through Python scripting.
Finally, when a scene is exported (see Supported File Formats), the Product Structure is kept as displayed in the Product Structure panel (if the format supports the tree concept).
Note
In this documentation, and in Pixyz Studio functions, the Product Structure is often called tree.