I don't think you need to adjust modern B1 xenon for Europe
Because he's going from UK (drive on the left) to Europe (drive on the right). DOH!Flatten the beam? You mean to equalize the horizontal height of the cut off for both left and right? If you are asking how to do this, may I ask you why? The driver side head light is always aimed lower than the passenger side to prevent glare to on-coming traffic.