Add attributes to a class
You may have additional attributes in your database that help users find or identify objects, store additional BOM information, or store additional title block information. This type of information is configured in your custom xml file for Creo Elements/Direct Model Manager. The following table shows the class types that support additional attributes and where the attribute may appear:
Class type
Find/Identify
BOM
Title block
Part (Masterdata)
Yes
Yes
Yes
Model
Yes
No
No
Drawing
Yes
No
Yes
2D Change Note
Yes
No
Yes
3D Change Note
Yes
No
No
Packets
Yes
No
No
* 
Modification of title block information requires customization in Creo Elements/Direct Annotation and Creo Elements/Direct Drafting as well as Creo Elements/Direct Model Manager and Creo Elements/Direct Drawing Manager.
If you have customized model/drawing classes to change which attributes are key (and therefore comprise the UNIQUE_ID_STRING), then you must also make the same changes in the corresponding change note classes.
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