How to run multiple hazelcast cluster in one deployment?

I'm deploying hazelcast on k8s using the helmchart on github currently on revision 5.3.2.

How would one go about running two clusters, say dev_cache and qa_cache in one helm deployment each with different members? Is that possible?

I see the fields

hazelcast:
   javaOptions:
     existingConfigMap: xxx

and

configurationFiles: #any additional Hazelcast configuration files

in the values.yaml but am unable to find any documentation on how to use them.

In one Helm deployment, you always run one Hazelcast cluster. You need to run Helm command twice to create 2 separate Hazelcast clusters.