Un-scan or AutoHotkey option?

Sometimes I scan by accident, or a wrong machine, and my Scan Status shows Failed to resolve hostname. Usually a machine that's offline. I often sort by scan status, so this throws me off.

I know I can go into the Scans, and delete the latest scan, and that works. But wondering if I can do that for 10+ machines? How can I delete the latest scan?

I often would use something like Autohotkey for this, but for some reason, my AHK doesn't work on most PDQ windows.  

Just trying to keep the screen pretty...

Thoughts?