This is a simple addon that lets you change the position of the party and raid member list on an X and Y axis. You can also choose between having your party list in a vertical (original) or a horizontal fashion. For example, if you have an ultrawide screen and feel like the list of party members is too far to the left, you can bring the party list in, closer to your field of view.
You can also change the opacity for the raid list.
Write /plm for settings. If youre not in a party while adjusting the position, then a dummy square will be visible to guide you.