Open a folder, then Double Click a song it plays, double click the next song it plays, double click the next song it plays, etc. Ability to audition songs quickly to find the right one.
A really nice suggestion, as current Windows integration (like showing cool icons and stuff) feels half-assed and not finished. There are several things that I feel should be added to the BBManager - auto open when a pedal is plugged, songs preview from Windows Explorer (exactly what you are requesting) and drag and drop.
I don’t have any timeframes on when this will be implemented, though.
The audition dbl click would work best on the explorer folder side. Think of comparing song #2 with song #37 back and forth.