ERA on Custom Skins

I would like to know, if there is a way to seperately paint the ERA on custom skins, or if that isn’t possible.
As it currently only “mirrors” paint across all the ERA bricks, making a proper placement of camoflage parts for this custom skin impossible.

If it’s not a thing yet, what would you think about it becoming one?
This would mean that you could properly decorate the custom skin.