Codeowners - team/group of people only for that,.

I'm setting up the use of the CODEOWNERS file in my company and we found ourselves with the following issue. Our current group/ subgroup structure is like this:

GROUP-A (103 members)
  |
  * ----> subgroup-B (inherit from A)
  * ----> subgroup-C (inherit from A)
  * ----> subgroup-D (inherit from A)
  * ----> subgroup-E (inherit from A)
  * ----> subgroup-F (inherit from A)

So, many people has access to our repos, and can check them, and many are also set as maintainers, but we would like to have a DEVOPS-TEAM with only 10 people, who are actually the ones that should be approving, and if I understood correctly, the inheritance from the main group always take place, right?

Can you help on this?? Manage access as MEMBERS of GROUPS of projects doesn't really work... we should be able to create TEAMS of people.

Regards hvithval.