Hello Julius,
Thanks for leaving ball in my court. 
Yes its new requirement , let me explain clearly.
We have 3 type of users in SAP-HR.
1)HR Admin
2)Time Admin
3)Payroll Admin
here, we restricted the above users based on their PA's(Personnel Area's)
Ex: P_ORGIN
Authorization level : * (As per business requirement)
Infotype : (As per business requirement)
Personnel Area : 1002
Employee Group : *
Employee Subgroup : *
Subtype : *
Organizational Key : * ( and this is same as PSA)
Note: Org Key value and PSA value is same in my System.
As of now in my system the above format existed and for ex: one payroll admin can see other employee details under his Personal Area. I meant to say here org Key = *, so one PSA person can see another PSA person details, to avoid this we can put here PSA name instead of " * ".
In my organization there is no Structural authorization concept.
Kindly let me know if you are looking more on the same. I really appreciate if any prompt responses. Thanks.