Thanks,
I went through this section but unfortunately I am still not sure what to do.
1) Copy the files (using the Finder or whatever)
What files? The old drive (Thunder2) is gone and the files were restored onto a new drive (Thunder3). Do you still have to have the old drive?
2) Select the folder in RAW Power that has the original copies
I assume this means the File Browser in Raw Power
3) Pick File > Reconnect Files
Greyed out