How to specify the PV storageClassName while deploying AMQ Broker as template ?

Issue

• I am deploying the AMQ broker on OpenShift 4.3 via the provided CR, which I have converted to a template. I have installed the Operator via the OperatorHub.I am deploying the AMQ broker on OpenShift 4.3 via the provided CR, which I have converted to a template. I have installed the Operator via the OperatorHub.
• I want to enable persistence, although when I do so, I receive an PVC event error about no storage class being set. I want to set the default storage class for all PVs created through the CR deployment, although after looking through the documentation, I have not found a solution for this.
• Is there anywhere in the broker instance deployment files where I can specify this storage class name?
• Here is my template file

apiVersion: v1
kind: Template
parameters:
  - description: All Kubernetes resources will be named after the broker name
    displayName: Name of the broker
    name: BROKER_NAME
    value: amq-broker
  - description: The number of brokers. 2 or more required for a clustered setup.
    displayName: Number of brokers
    name: BROKER_COUNT
    value: "1"
  - description: Enable broker persistence
    displayName: Enable broker persistence
    name: ENABLE_PERSISTENCE
    value: "true"
  - description: Enable SSL
    displayName: Enable SSL
    name: ENABLE_SSL
    value: "false"
objects:
  - apiVersion: broker.amq.io/v2alpha1
    kind: ActiveMQArtemis
    metadata:
      name: ${BROKER_NAME}
      application: ${BROKER_NAME}
    spec:
      deploymentPlan:
        size: ${{BROKER_COUNT}}
        image: 'registry.redhat.io/amq7/amq-broker:7.5'
        persistenceEnabled: ${{ENABLE_PERSISTENCE}}
        messageMigration: ${{ENABLE_PERSISTENCE}}
      acceptors:
        - name: amqp
          protocols: amqp
          port: 5672
          sslEnabled: false