Hi @ashim, unfortunately, we/I haven’t yet added documentation on multi-tenancy. It’s definitely on the to-do list. The easiest way to create new tenants is to use Kibana.
In Security, pick a role (or create a new one), give it whatever permissions you’d like, and then go to the Tenants tab. Here, you can specify the tenants associated with the role and whether users with this role should have read or write access to visualizations/dashboards. Then go to role mappings and map a user to that role.
When you log into Kibana as the user and click Tenants, you should see the new tenants you added. You can select your desired tenant, view dashboards, etc.
(If you look at the REST API, you can see that tenants are more like properties of roles than independent objects: https://opendistro.github.io/for-elasticsearch-docs/docs/security/api/#create-role)