Custom Matrix Manager role scoped only to Performance/Talent, no Compensation/Core HR access

Summary:

We are designing a new custom Manager Type in Core HR ("Talent Matrix Manager") to be assigned at the assignment level, in addition to the employee's existing Line Manager. The goal is narrow: this matrix manager should only have access to Talent related tasks (adding ratings/comments on Annual Performance Evaluation and Mid Year Review documents, and viewing Goals) for the specific employees they are assigned to as matrix manager. They should have no access to any other type of information, such as Compensation, and should not be able to perform any Core HR transactions (transfers, position changes, and so on)