Hi Carmen,
Regarding the My employees service it is available under the Travel and Expenses area under the Role: ESS Instance: MENU . Check the launchpad in the LPD_CUST transaction.
So as per your query the Secretary needs to raise a travel or expense request on behalf of employee for this from Team view application can be launched check for the Role: MSS Instance: EMPLOYEE_MENU in the LPD_CUST transaction.Regarding the SPRo path check here as mentioned IMG->Personnel Management->Manager Self-Service (Web Dynpro ABAP)->Team View->Configure Menus for Team View.
If the same is to be launched from the Employee profile then check for the launchpad Role:MSS Instance: RELATED_ACTIVITY.
Hope this clears the doubt.
Regards,
Mithun K