It should be possible to fill or edit Attibutes in Creo Elements/Direct Annotation or Creo Elements/Direct Drafting, similar as it is done in Creo Elements/Direct Modeling "Browser Views" and stored to a Windchill EPM Document.
The advantage would be:
* set the values within the authoring application
* full control about the dialog masks and customizations within the authoring application
* mark a drawing with unique attributes during the creation of the drawing, e.g. with the business unit.
* This attribute can be used as a part of the name/number also.