Oracle RMC Access Control Data Restriction can be done BU wise (with Perspective and Role Data)?

Dear All,

Is it possible to restrict Oracle RMC Access control data BU or Ledger wise, If client has more legal entity they don't want other entity users to see their data, same time they don't want to add multiple controls(Adding BU Access condition will help but no of controls would be more in count), in Perspective there is a type called Organization & Participant Group and how does it work? which column in Fusion Roles its referring? will it help to achieve my request kindly advice.

Same question go for dashboard, reports as well.

Thanks in advance.