There are a few ways to mimic camera movement in flash. The easiest way is to think of it in reverse.
Imagine you have a camera attached to the ceiling looking down at your floor. The floor represents the stage
. On the floor you have a table, this is your uppermost DisplayObject
, typically your Document class.
On this table are all the things you are displaying.
Now, you can't move that camera in the ceiling, nor can you move the floor, so what you need to do is to move either the table itself or the parts on it the "opposite" way. Say you want the camera to pan left; you move everything to the right.
TLDR: So, to get a "camera", wrap the things you want to pan around in a Sprite and move that Sprite the opposite way.