Indicator for Lists/Crates: Track loaded in Deck x

I would be very helpful to see in playlist or crates or other lists, when a track is loaded in a deck and in which one. Helpful, if you need to find your loaded files quickly in long lists or within many tracks with similar names. When I have a long list of files with similar names (mixex, remixes, badly named cd-rips, files without any name or tag or whatever) I need a hint, which one is loaded - prevention of mistakes. Even when you mix two similar named songs together in each other (I do), it's very important to know, which one is where And: It's common in other DJ software, I'm sure, there are more good reasons for it :)