MSS Record Working Time on behalf of Employee

Hello,

We are implementing MSS on Portal and want to let the Managers enter Time on Employee's Behalf. I found the Role->MSS ,Instance ->EMPLOYEE_MENU in LPD_CUST , and created an iview on Portal using the Record Working Time Application,configuration name and Target Application Parameter. The Timesheet displays on Portal for the Manager but where and how would the Manager enter the Personnel number of the employee for whom he is entering the time ?

Any help would be highly Appreciated.