[Unsolved] Gate Help

I was wondering whats the trigger to make so that:

A unit walks to a region.
Cinematic opens blablabla.
give item to hero: key


A unit walks to gate
the gate opens.

Just do as you said.

Events
A unit enters region blablabla
Conditions
Triggering unit is a ground unit equal to true
Actions
Open Door blablabla
Hero - Create item for hero, and give triggering unit.

Oh hmm i had another questions, i dont think the gates are invulnerable so whats the trigger to make it invulnerable.
Also, about the key whats the trigger to remove it when the hero gets in region.

destructible make invurnable
item - remove from game or something similar

You can make an Item variable and set it to the item given to unit. Then just make it so when that unit enters region you want it is removed.