Tools > 3D Features > Create CAD Objects converts existing 3D Features to new CAD objects in the Model Manager.
Features group - lists the one or more 3D Features on the object that will be converted to CAD when you press Apply.
Filter dropdown (All, Plane, Cone, Cylinder, and Sphere) - limits the members of the list to the 3D Features of a given type.
List of 3D Features - Click one, Ctrl-Click two or more, or Shift-Click several names. The highlighted 3D Feature(s) will be converted to CAD when you press Apply. Each individual 3D Feature will generate a separate CAD object in the Model Manager.
OK button - creates the CAD object(s) in the Model Manager and closes the dialog.
Cancel button - removes any just-created CAD objects from the Model Manager and terminates the dialog.
Apply button - creates the CAD object(s) in the Model Manager and leaves the dialog open.