hiding certain areas from the overview page of ESS in portal
We have a requirement where we need to hide/disable certain areas from the "Overview" page of ESS in portal.
In Overview page, we have certain links like Employee search,Life and work events,
Purchasing and travel and expenses.
I m not able to find these pages under overview workset also.
We have to hide 'Purchasing' and 'life and work events' areas from the overview page as the customer dosent want to use this sap standard impl.
Is the customiztion to be done from portal side or do we need to do it from the IMG??
Can someone pls tell us in detail how to do it?