I wouldn't wait for this to be implemented on our side, it could take a long time if it even is implemented at all.
It's difficult to say what a good strategy to do something like what you are describing without seeing how your project looks like. Of the top of my head, you could try having a few families and use that as the mechanism to place the instances in the correct layer.
Ej. after creating all the instances look for all the instances in the HUD family and place them in the HUD layer.
Doing something like that for each layer should be convenient in the long run.