Backflushing parts in particular assemblies

Hi all,

We're on Vantage 4, soon to be 8 and I was asked recently if there was
any way of doing backflushing on a part only if it is in a particular
bom?

For example, part no. RE-47K-001 is used in one BoM that we require
backflushing on. Yet RE-47K-001 is also used in other BoMs that we are
not concerned with backfushing. The backflush checkbox seems to be on a
per part basis, but we would like it to be able to be set within a BoM
instead?

Does this make sense, and is it possible?

Cheers,

Jonny