How to restrict benefit access in Enrollment Area

Hi,

We want to give Benefit Enrollment area access to payroll people where they will add 'Benefit Group' to the employee. When I am trying to do the same either it is not working or they have too much benefit access. Is there any way to restrict the access so that we can only give payroll people minimum access to the Enrollment area. Attaching one screenshot for the reference.

Regards,

Tania