To Use Datapack:
/scoreboard players set @s activate 1
/scoreboard players set @s activate -1
/scoreboard players set @s id 1 (if you doing multiplayer which idk if this supports make sure id is different for everyone)

To Apparate:
Left Click
Item:
/give @s (item you want){appa:1}

To Use Wand:
Left Click = Stupefy
Right Click = Protego
Shift Left Click = Incendio
Item:
/give @s (item you want){wand:1}

only 4 spells (apparate, stupefy, protego, incendio) sorry