Switching PQS from TransactionStream to TransactionTreeStream mode

Can I switch a PQS instance from TransactionStream mode to TransactionTreeStream mode without reseeding the database?

I want to preserve the information that is already in PQS. But going forward, I want to start capturing exercise details and transient contracts.

This is not a supported use case and has not been tested. The expectation is that the PQS database is reseeded.