Well, I'm sure you could use the camera plugin if you wanted, but you can use the normal method too.
Just have the screen follow an invisible sprite that's controllable with the keys.
Then you can move the camera around your layout during the game.
You can also set it up to use both, by having the camera set on either the player character or the invisible sprite, like so:
If global(camstate)=1
Follow player character
Else
Follow Invisible sprite
Krush.