The Stack shows the different
layersThe part of a picture that contains an object. Objects in layers can be changed and moved without affecting other objects in the same picture. The order of layers can be changed by using the Stack. of your picture that contain
objectsA part of a picture, including shapes, text boxes, lines, or animations, that can be edited individually.. Use the Stack to select different objects in your picture. You can also drag objects up and down the Stack to change the order of the layers.

To show or hide the Stack:
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On the View menu, click Stack.