Ghost 15 - How do I import previous backed up recovery points/sets

I had to reinstall Ghost 15 therefore the previous recovery points/sets I had over the prior weeks are no longer listed in the backup history. The recover points/sets still exist on a network share and I would like to get these into the Norton so I will be able to:
- recover files from those recovery points/sets
- have Norton remove older recovery points/sets as defined in my backup job (if possible)

I understand this can be done with the "recover my files" but I am not backing up with that option.

Thank you in advance for any help you can provide.