Assign One Identity manager Application Role to a Business Role

Hi All, 

I couldn't find a similar question on the forum or OID documentation. 

I've created a permission group in the designer and assigned it to a Custom/new One Identity Manager Application Role. 

Next step I would like to assign the One Identity manager application role (AERole) to a Business Role (ORG) which is not possible in the manager. 

Also tried to assign to a system role, failed. 

Any advice?

Thanks