1. Did you get an IGES/STEP file that you opened in Solid Edge?
> In the file open dialog, click the Options button and match the settings as below:
2. As you mentioned you got the part, was it a Solid Edge part with the geometry already imported and given to you ?
> Save As Translated the part to either IGES/STEP and open back the exported file with the options set as above.
With this, you will get only one entry in the Pathfinder as Partcopy instead of the multiple seen now.
Right-clicking it will enable the Design/Construction toggle.
Hope this works for you.