Editing BOM in assy drawings

I would like to know if I can switch off BOM updating.

I do not wish some info to show up on the assy drawing that isrequired on detail drawing eg. material info not required on assydrawing.

So when I blank the cell out or edit the cell, on assy drawing itupdates back to same cell on detail drawing which I do notwant.SolidworksBill Of Materials