Can’t Scan Multiple Folders?

Trying version 1.1.0 now. Love the interface, but it only seems to scan one folder at time. In other words, if I drag and drop a folder, it starts the scan. I cannot drop a second folder. Or, if I use Select Folder, it only lets me choose one folder. I cannot select multiple folders. Why does that matter? I have two external drives. I can scan one or the other, but not both at the same time. So, if the two drives have the same file, this program will not find the duplication. Am I missing something? All of the other programs I’ve used will let you scan multiple folders (on multiple drives).

TM-650-TM about Duplicates Cleaner, v1.1.0