Restrict LO Insert Content from WebI to Public Folders Only

SAP BI 4.2 SP3
I’ve got a requirement to allow Live Office to only insert from the user’s accessible Public Folders, but not their My Favorites folder. I’ve tried using an Access Level on the User folders denying Content/Web Intelligence/Export the Report’s data (both standard and owner right) and same for Crystal Reports, but they still see their user folder from the LO dialog. Any idea on which rights control this?

charlie :us: (BOB member since 2002-08-20)