JanusGraph authentication - restricted privileges

Hi All, we secured our JanusGraph with SaslAuthenticationHandler as desribed in the docs (https://docs.janusgraph.org/operations/server/#advanced-janusgraph-server-configurations). The defined user now can be used to read/write data in the graph database as well as for managing the schema. Is there a way to create a user that can only perform read/write on the graph but cannot change the schema? Thank you for any pointer on this.