From what i have seen for the coming BR147 locomotive add-on, i saw only a Ribbed side like the cargo BR187 version. But there are also versions with a flat side. Would ik be possible to also ad this flat side as a variant of this same locomotive? This makes the Livery designer more fun for this locomotive cause with a flat side there are more options for people to make certain liveries. Cause the ribbed version makes it more difficult to make good looking logos on the side. It's a small extra change that would make me happy, and make livery designer more creative Of if you want to make it a bigger difference you could add the BR188 as a alternative variant (these always have flat sides) and that could be the new cargo version, and also gives the more options.