Multiple malware scanners

What chance of supporting multiple malware scanners in one instance of
Exiscan? I have a requirement to scan twice with different scanners -
currently I have to do the first with Exiscan and hand the second off to a
router with obvious pitfalls.

I would want to select which malware scanner gets called for each ACL so I
guess

malware = *:sophie

malware= *:clamav

etc

.. and a new way of defining the calling parameters of each.

Peter