We are including PostgreSQL, MongoDB and MariaDB in our DreamFactory stack, but we can not provide support for the specific configuration you want to do for your application. Our support is oriented to solve problems related to Bitnami Stacks, Virtual Machine or Cloud Images.
For information regarding the application itself or customization of the content within the application, we highly recommend checking forums and user guides made available by the project behind the application. For example, you can take a look at:
Carlos R. Hernández