While you have correctly tagged this as a Feature Request, the title isn't going to help with its visibility.
Also, this is an end-user forum. Your request will only be seen by developers if enough of us up-vote it (and I fear that you won't get that with the current generic subject).
I've ready your request a couple times, but still don't understand what you are trying to accomplish and what you are asking for. (sorry).
It is possible that your current workflow is making it harder for you to keep track of the samples in use.