You can use Send to New 3D Part to break down content into constituent parts and structure your content.
Before you begin:
Open more than one shape.
The shapes must not intersect.
To show the tree and view the model structure, press F3.
To create a 3D part, do either of the following:
In Select mode , select a shape and then click Send to New 3D Part in the context toolbar.
In Local Mode, right-click a shape and select Send to New 3D Part.
Note:
You cannot create a 3D part from a surface shape.
Creating a 3D part impacts the product structure. In the tree, a new 3D part containing the selected shape is created.
In the work area, the 3D part turns transparent. Any 3D constraints are converted to engineering connections.