Camera Help

Okay, so many people play Pyramid Escape. If you are a mapmaker and have played Pyramid Escape I need your help.
-#1- When you do a challenge in Pyramid Escape, I need to know how to make the camera focus on 1 area like it does. Explanation- I need either trigger code or explanation on how to lock the camera to a general area, AND how to make it so the users can't see the rest of the minimap. The camera enlarges I think and it makes it so you can't scroll away from your challenge, and you can't see the rest of the minimap. HOW DO I DO THIS?
-#2-How do I make it so that in my Rpg the players can't see the minimap? In Pyramid Escape, in the beginning when you look at the minimap(and in Blizzard Maps) you can't see any of it! I would like to implement this into my map and I need to know how.

If you can help, thanks! If you don't understand what I need help with then just say so.