Use mouse wheel when adding new event

Is there a reason why you can't scroll the 'new condition-window' with the mouse wheel?

It would make working much faster, especially if you have a huge amount of objects.
No offense, but it is a bit annoying the way it is now...

This one:
http://www.raven-id.de/other_stuff/newcondition.jpg

I agree with this, i also think there should be an easy way to group and filter objects in this view.