In addition to the indexing of bibliographic metadata, Primo VE indexes preferred and non-preferred terms from 1XX and 4XX fields in related Alma authority records.
This is not the case for classification authority records. In the old Primo, it was possible to enrich bibliographic records with additional terms available in 7xx fields of the classification record. For instance:
153 ##$aE860$hUnited States$hLater twentieth century, 1961-$hNixon's administration, 1969-August 9, 1974$jWatergate Affair, 1972-
750 00$aWatergate Affair, 1972-1974.

Could you enable enrichment with 7xx fields of classification authority records in the same way fields 1xx and 4xx of authority records enrich bibliographic records in Primo VE?