If it does get added in the future, I'd love it they could be 2 separate options. While I love the imperial markings outside the altimeter, I don't care as much about the distance scale.
(And I found the 1x / 10x indicator the mod used to be less clear/slower to parse than the mil / km from the normal one)
EDIT: I'd also be just fine if you just release it as a separate mod/cockpit we can choose to install ourselves if we want it.