Multiple Firewalls, Multiple Intranets

I have just begun eval of this product for use in our company's managed firewall infrastructure.

So far I like what I see, but I have a question and I'm worried the answer is not going to be one that I like...

We manage a variety of brands of firewalls for a multitude of companies and would like a way to centrally manage monitoring and reporting on the firewall logs.

Currently, all the brands we manage are supported, so that isn't an issue.

What is an issue is the "Intranet Settings" - I don't see a way to modify those on a per-firewall basis and that could lead to confusion...If one of our customer's LAN networks is 10.0.0.0, but another one of our customer's uses 192.168.0.0, and I configure the intranet to be 10.0.0.0, then the customer at 192.168.0.0 will have all addresses appear to be firewalled in reports. That is, unless I'm reading the docs wrong.

Is my interpretation correct?