Start in the part or assembly that you want to copy from...
1. Right click on the first line of the part model tree and select, Edit Parameters.
2. LMB and hold... drag a bounding box around all the fields in the list (except for Intralink related ones).
3. Release the LMB and now single click RMB and select, Copy.
4. In the target part or assembly, right click on the first line of the part model tree and select, Edit Parameters.
5. In the top leftmost cell, RMB and select, Paste.
6. Pro/E will pop up a message related to the fields, but select, YES.
7. All fields with the original content will be copied over.
Hope it helps.
Bob