Scanning issue in DT

In trying out DEVONthink Office Pro, I’ve noticed that, when scanning, nothing is actually seen in “Overview.”. In other words, I am unable to actually see the image to be scanned (in order to crop) before the actual scanning process. I’m using a Canon 8400. The actual scanning works fine. It’s just the initial overview before the scan cannot be seen before the scan.

One other question I have is, how can I use the scan feature in DT and have the scanned file go to a folder on my HD and then have it indexed rather than imported directly in DT?