Selects the target of the specified id as the current target.
- String - The UnitId to select as a target.
- Selects the target of the specified id as the current target. One can use any of the defined UnitId values. One can also use AssistUnit("unit"pet) to assist the pet.
- If the players target was changed by a Targetting Function it is possible to restore the original target by assisting the player.