Extra option select playlist window

When now opening the ‘select playlist’ window, it looks like this:

As you can see playlists are scheduled until saturday 28-5 12pm.
Now I wonder if the next option would be possible handy. Since lot of people use voicetracking for their station, they would like to see wich hour contains vocetracks. probably it can be made visible like this?

(This image is made by paint so it isn’t a feature at this moment!)

The red dots indicate that monday till friday the playlists 10:00 till 12:00 contains voicetracks.
this way the management (and dj’s) can see very quickly wich hours are already recorded for that week without opening every hour.

maybe this can be a nice feature?