Part Modeling > Edit Features > Copy and Paste > Using Paste Special > To Verify the Availability of Original References
  
To Verify the Availability of Original References
1. Select a copied feature in the Model Tree.
2. Next to Model Tree, click > Tree Columns. The Model Tree Columns dialog box opens.
3. Under Not Displayed, select Copied Refs and click to move the selected item to the Displayed section.
4. Click OK. The Status column added to the Model Tree displays the following status of the copied references:
MISSING when the references are deleted. This status is also displayed when the feature is copied across models and the source is in session.
FROZEN when the feature is copied across models and the source is not in session.
SUPPRESSED when the source feature is suppressed.
EXCLUDED when the source feature is excluded in a simplified representation of a part.