So, I'm trying to find out, with the base game, prior to any mods, how to sort of mess with the Lumbermill. I'm trying to find out where to move it to a different, earlier tech. I'm planning on giving it just a +1 to production at a much earlier time, then giving it a bonus on Replaceable Parts and with a railroad. I've found how to do the other two, but can't figure out the tech part. I'd prefer to do this to the base game via the XML, rather than a mod, as it's a feature I want to always have.