Make Frequent Contacts always pull from Novell GroupWise Address Book

I know it’s a strange request, but one of our Senior execs wants this end
result:

In order to send an external email, they want to be have to pick it out of
the address book instead of having it autofill. The only autofill options
they want are internal groupwise addresses being pulled directly from the
Novell Address Book.

They also want to know if there is a way to turn this on globally. (Eek!)

I hope this makes sense. I really appreciate any responses, and please
let me know if clarification is needed.