Trigger

How would I go about making a trigger with 4 regions so that when he enters the first one, the hero says something, then the second, he says something, third, he starts running, and fourth he talks to a Ogre. And how do I make quests?

REGIONS
U do "units enters region", then do variable entering unit equal to.. (well, any unit u want) is alive and then whatever action u want.

QUESTS
To make a quest, go to actions, create quest and you'll find the rest out for yourself to make quests.

Thank You.