How to create a group at once

Summary:

I want to know how to create a group at once

Content (please ensure you mask any confidential information):

I have too many groups to create, so I would like to know how to create groups at once.

In the "Note" of the URL below, it is stated that this can be done with "Migration" or "EPMAutomate".
Since EPMautomate cannot be used in the customer's environment, please tell me how to perform "migration".

https://docs.oracle.com/en/cloud/saas/enterprise-performance-management-common/pappm/crtgrp.html

Note:You may also use Migration or the createGroups EPM Automate command to import group information from a file to create groups.