I didn't notice one already. The reason being, I like to keep track of my play counts and since I no longer use itunes and an ipod to do this automatically, I have to manually adjust for songs I have listened to on the mp3 player (a Fiio X1) by editing the play count in the properties tags. This is definitely a nice feature as it is, but it would be a lot quicker to just press like CTRL + or CTRL - as a hot key. Thanks!