There are two ways to backup the configuration and then do the restore. In old PacketShapers, there used to be plug-ins to help with traffic classification but PacketShaper S-Series does not have Plug-in concept.
Detailed Backup and Restore procedure available at:
https://knowledge.broadcom.com/external/article/165858/steps-to-backup-the-packetshaper-configu.html
Plug-in overview available at (This does not apply to newer models, PacketShaper S-Series):
https://knowledge.broadcom.com/external/article/167123/verify-whether-any-packetshaper-plugins.html