Just follow Malcolms instructions for the 4 lights and cut a bit out to re-align the bulb. I have just found a set of early 4 headlamps with sidelights built in and adjustable for right or left HD. I used to have a Peugeot 203 with Cibie headlamps which had this feature, wouldnt't ibt be nice if manufacturers stil made things this easy.
Happy new year to you all.
Allan