How to create a new metastore?

I want to configure Unity Catalog and one step is creating a metastore in the region where I create databricks workspace (I am on Azure).

I created a workspace with a premium pricing tier and I am the admin.

Following the documentation, I should go to the Data tab to create metastore.

However, when I open the Data tab, I don't see "Create Metastore" button.

The same in SQL persona:

Could you guide me how to make a new metastore?

If a metastore is already created in the region, how can I find it?

In order to do this sort of management, you should access the Databricks account portal at the tenant level:

Databricks Account

From there, you can create and manage the metastores, as well as assign a metastore with a Databricks Workspace, which is what you have created.

Take into account that for most of what you have described, you must be an account admin for the Databricks Account.

As per the official docs (source):

The first Azure Databricks account admin must be an Azure Active Directory Global Administrator at the time that they first log in to the Azure Databricks account console. Upon first login, that user becomes an Azure Databricks account admin and no longer needs the Azure Active Directory Global Administrator role to access the Azure Databricks account. The first account admin can assign users in the Azure Active Directory tenant as additional account admins (who can themselves assign more account admins). Additional account admins do not require specific roles in Azure Active Directory.