Too many object layers? You’ve created something amazing with multiple-layered objects and animation. And now, you have to make a change. You could “unlayer” them, make your change and then spend all that time achieving the alignment you worked so hard to get.
Or, you can click on the Arrange button on the Home tab, Drawing group and choose Selection Pane. Click on a “layer” or object to select it and make your change. Or, hide the other layers temporarily by clicking the eyeball icon to the right of each layer.