Role Restriction and allow multi Classes

Hi,

Is it possible to allow multi Classes for one employee as what we have now is that restriction on role restricts all classes and allow only one class (the one which assigned in employee record)

Or

is it possible to assign a specific class to a specific Role so I can create multi roles and assign multi role to one employee and he can switch between them

the purpose is to grant one employee access to a specific classes and not all classes and restrict other classes so he can't see related data.

assign parent class will not work since it will affect reports , Please advise !!