How to connect to a new h2 db instance using a new process engine. I want to connect two process engines to two new separate databases in camunda

How to connect to a new h2 db instance using a new process engine. I want to connect two process engines to two new and different databases in camunda.
How to I achieve this?
How can I configure the standaone.xml and process.xml for the same?

image

There are two process engines and three tenants in my camunda engine as of now. I am able to deploy and persist bpmn and its service fed data using all three only with the default h2 db. But I wish to save data of every tenant separately and connect to a new db instance for every tenant. or atleast new db for every process engine. How to I configure this in process.xml and standalone.xml?