Basic Administration > Managing Data > Site Administration > Understanding the Site > Site Administration Best Practices > For All Windchill Solutions > Enabling Display of Quantity, Unit, and Reference Designator Attributes on Substitute Parts
  
Enabling Display of Quantity, Unit, and Reference Designator Attributes on Substitute Parts
You can choose to enable the display of the Quantity, Unit, and Reference Designator attributes on substitute parts on the Structure tab of the part information page. This functionality can be enabled at either the site or the organization level.
To enable this functionality:
1. In the Preference Management utility, set the Part Management > Enable quantity and reference designators for substitute parts preference to Yes.
2. In the Type and Attribute Management utility, display the Part Master type.
3. On the Layouts tab for the Part Master, select the Part Structure Replacement Attributes layout.
4. Add the Quantity, Unit, and Reference Designator attributes to the layout.
5. Save the layout.
The Quantity, Unit, and Reference Designator attributes will now display on the Attributes tab for substitute parts on the Structure tab of the part information page.