Mark played titles during random order

[VeryLazyChris]

I usually play the titles of any album in a random order. During sequential playing one can see how many titles are already played, as it simply steps through the list. But in random order one has no clue.

It would be convenient if that was expressed in some way. E.g. by marking the played titles, or by keeping a counter like played/total. So that is the request.