Editing and Managing Symbols
There are a number of ways to edit symbols. When editing a symbol, you will see the symbol's name in the Edit Bar next to the name of the Scene. The two most common techniques are:
Double-click the instance on the Stage. (Or, right-click and choose Edit in Place) This way you will see the instance in context with the other objects around it. The logo below is still stretched as it is in the instance.
Double-click in Library. (Or, right-click and choose Edit) The symbol will still open, but you will not see any other items on the stage. It is the symbol alone. You will not see any effects that are on any instances surrounding the art you are editing.
Note: No matter how you edit the symbol. If you make changes to the symbol itself, it will change all instances of the symbol. It is important to watch the Edit Bar to know if you are editing a symbol or the main timeline.