What I mean is being able to limit, extend or simply just move the view of the player. Like having the camera always having Mario centered or showing the entire map. Would be useful to have this if you're thinking of making the player slightly backtrack or see the entire room of a puzzle.
Maybe even have it so that the camera changes if the player passes a block, although that would be just minor aesthetics but could be used in a nice way.
[SUGGESTION] Custom view.
Could be useful. I wouldn't be surprised if it wasn't already implemented.