Server Administration > Item Fields > Deactivating Picklist Values > To deactivate a picklist value in the GUI
  
To deactivate a picklist value in the GUI
CLI EQUIVALENT 
im editfield
1. From the Fields view, select the pick field you want to edit.
2. Select Fields > Edit. The Edit Field dialog box displays.
3. Select the picklist value you want to deactivate, and click Edit. The Edit Pick dialog box displays.
4. To deactivate the picklist value, clear the Active check box.
5. To save the changes, click OK. The changes take effect immediately in the Windchill RV&S database. Inactive picklist values are denoted by the [Inactive] tag.
6. To save the pick field, click OK.