scmJS docs

Move Location

Centres the second location (Move) on a unit of the type owned by the player inside the first (Unit at). Following a unit with a location, so that other triggers can act around it, is done with this.

Action 38 · Move Location(Player, Unit, Unit at, Move);

Argument Takes Stored in the action
Player a player or group bytes 16–19
Unit a unit type, or one of the unit classes bytes 24–25
Unit at a location (Anywhere is location 64) bytes 0–3
Move a location (Anywhere is location 64) bytes 20–23
Move Location("Current Player", "Terran Marine", "Anywhere", "Hero");