Ugh...eh...not, yet, it isn't possible. But, oh, that's a really funny one, because if all goes well, something like that should never be necessary either. So...not sure, but for now it ain't possible, sorry.
I find you quite fascinating as an artist, Ed. You bring style to your reference studies, even a distinctive one, too. Yet, you have still a lot ahead of you to gain confidence and understanding to work without reference, you know. It's a wonderful road ahead of you, though.
The one thing I may worry about a little is the transition from letting go of reference, even as you work with it, but internalize your understanding of what you're looking at. There are multiple "dimensions" to work out, to fully take on the inside and see with your inner vision: Shape, Volume, Light, Material and, of course, Color.
I think, if you've worked successfully with references for a long time, this could become a daunting task, like feeling lost or detached somehow and searching for a lifeline. But once you let go and you accept the challenges- and there are many- then you will discover your true artistic powers!
You can draw from certain logical things you likely already know, especially in terms of proportions! We've talked about Fibonacci, but the weight of this system of proportions is not to be underestimated. It goes everywhere, really. All kinds of relative sizes and placements on most living things have those proportions. Faces have those proportions all over, everything does. This is but one example of things you most likely know already, but may not have taken control over just yet. Perspective and all that jazz is yet another thing, of course. But take things one step at a time. No need to rush. I just think you should gradually get away from references to find your inner strength before you return back to references. It will give you a great deal of independence!