Content ID for Already Published Beats

The current Content ID and More feature for Pro users only allows newly published beats to be added to Content ID and More. I want this feature to be extended to already published beats as long as they have not been registered for Content ID elsewhere. I understand that at least one other beat-selling platform allows this.

I do not want to risk using a third-party service. This can create complications with YouTube if I decide to use both BeatStars and another service for registering my beats.

This would go a long way toward protecting BeatStar's producer's rights while keeping things all on BeatStars.