iView/role assignment

Hi everybody,

we have a workset assigned to roles R1, R2, R3, R4.

Inside this workset we have a page P1, assigned to the same roles as before.

Inside this page we have 3 iViews: I1 assigned to all, I2 to R2 and I3 to R3.

How can we manage this without creating new items? (maybe modifying the permissions on iViews?)

Thanks in advance

Pier