**To duplicate an existing DB cluster parameter group** The following ``copy-db-cluster-parameter-group`` example makes a copy of the parameter group ``custom-docdb3-6`` named ``custom-docdb3-6-copy``. When making the copy it adds tags to the new parameter group. :: aws docdb copy-db-cluster-parameter-group \ --source-db-cluster-parameter-group-identifier custom-docdb3-6 \ --target-db-cluster-parameter-group-identifier custom-docdb3-6-copy \ --target-db-cluster-parameter-group-description "Copy of custom-docdb3-6" \ --tags Key="CopyNumber",Value="1" Key="Modifiable",Value="Yes" Output:: { "DBClusterParameterGroup": { "DBParameterGroupFamily": "docdb3.6", "DBClusterParameterGroupArn": "arn:aws:rds:us-east-1:12345678901:cluster-pg:custom-docdb3-6-copy", "DBClusterParameterGroupName": "custom-docdb3-6-copy", "Description": "Copy of custom-docdb3-6" } } For more information, see `Copying an Amazon DocumentDB Cluster Parameter Group <https://docs.aws.amazon.com/documentdb/latest/developerguide/db-cluster-parameter-group-copy.html>`__ in the *Amazon DocumentDB Developer Guide*.