exclude IP addresses in scan??

I love this program! I have 2 snmp enabled APC UPS’s that flip out and send me alert emails every minute that someone (the dude) is trying to spoof a log on when I run scans. I tried removing those 2 units from the scan, but the only way I could stop the alerts (blackberry hell) was to uninstall the dude. I don’t really want to start this process again until I can figure out the exclusion. Thanks in advance, Peter