Combined objects and the Outliner
Use the Outliner for groups and objects, and Combined objects for 3D stacking relationships.
The Outliner lists groups and objects in the current editing context. The separate Combined objects tab shows participating 3D objects and their parent–child stacking relationships under Stacking Hierarchy. A group contains items for editing together; a stacking relationship controls how 3D shapes combine. They are different relationships.
Find an object or group
Open Outliner in the Inspector. Expand a group to see its contents, select a row to select the item, and use the row controls to show, hide, lock or unlock it. The available contents follow the editor: drawing objects, Reshape groups or Structure members.
Navigate and rename
Use the tree rows to inspect nested contents. With a row focused, use the tree keyboard controls; F2 starts renaming where supported. Opening a group changes the editing level. Use the context path to check where edits will apply.
Inspect a stack
Open Combined objects to inspect stacked 3D objects. A child row shows the mode applied relative to its parent; a root object has no parent mode. Change an available mode through its row control. Unsupported modes are disabled for the selected parent.
Reorder or separate
Drag stack rows to change ordering or supported parent relationships. Moving a child to the top level asks for confirmation before separating it. Read the deletion dialog carefully: the trash action deletes the object; it is not just an unlink command. Where offered, choose whether to keep or delete its contents.