[Koha] Anonymizing circulation history at patron-level?

Am I correct in assuming that it's all or nothing with the tool to anonymize checkout histories? It occurs to me that ideally patrons would be able to choose for themselves whether to have the system remember their reading histories, following full disclosure of the potential implications. (In our state at least, circ records must to be turned over pursuant to subpoena, court order, etc.) At present, I believe our only option is to manually anonymize everyone's records on a schedule of our choosing. Cheers, Cab Vinton, Director Sanbornton Public Library Sanbornton, NH