Every area needs to have following scripts set:
mod_area_enter in OnEnter event
mod_area_exit in OnExit event
Never use the creature wizard. If you want to make a creature, find a creature closes to what you want by strength or/and race and make a copy then adjust it. That will allow you to set its resref. Creature wizard and level up wizard too tends to give NPC starting gear for its class and tons of useless feats.
Since there is not an immunity to stun and since mind-spells immunity doesn't include stun anymore, if you want to make creature immune to stun you need to grant her feat Tough as Bone.
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