You have to add the required privileges to roles that Manager and Operator has. Open Manager/Operator's access group and check the roles he/she has. Update one of them to grant the required privileges.
Yes, it is Rule-Access-Role-Object. You have to check in your role that if a RARO is already present for class "Rule-" or not. If it is, you can update it to add the required privilege. If not, create one on Rule- class and add the required privilege. By default, PegaRULES:SysAdm4 contains a RARO for Rule- class. You can use it for reference.