Unable to implment item class security to restrict user access to particular operation attribute grp

Summary: Restricting user access to particular operational attribute group under PIM

Content (please ensure you mask any confidential information): We're working on a requirement where we want users to access and edit only particular operational attribute group on PIM screen. E.g. one user should be able to edit only Inventory attributes, while other user should be able to edit only Sales and Order Management attributes, while another user should be able to edit only Purchasing attributes on the PIM screen. From below attached references, we got to know that this can be achieved by defining data security as item class level.