About Annotation Orientation by Named Orientation
You can define an annotation plane using a named orientation. If you delete the named orientation, the annotation orientation remains unchanged.
Note the following points about an annotation orientation by named orientation.
Annotation Elements with a named orientation do not display any reference for the annotation plane in the References collector in the ANNOTATION FEATURE dialog box.
Creo Parametric does not copy a named orientation in the UDF or DSF. The Annotation is frozen relative to the UDF geometry.
All Annotations oriented by named orientation placed with independent UDFs are frozen. You can change the Annotation Element orientation in the target model independent of the source Annotation Element.
If you create the annotation in a part in an assembly, then you can select only the saved orientations of the part for an annotation plane.