Primary Location Structure - Region Level

Summary:

When creating geography structure for primary location in ORC how can we have a region level on top of country level ie EMEA, APAC then the country level ?

Content (required):

When creating geography structure for primary location in ORC how can we have a region level on top of country level ie EMEA, APAC then the country level. Is this possible via manage geographies as its always country level first ?

Version (include the version you are using, if applicable):

21D

Code Snippet (add any code snippets that support your topic, if applicable):