If you design diagrams with layered objects, especially with animation, it can be a bit frustrating to keep things stacked the way you like as you make changes and add movement. Here are a couple of tips to keep your sanity with layered objects.
The Selection Pane
Reveal the selection pane by clicking on the Arrange button in the Drawing group on the Home tab. Now, you can hide, reveal and reorder your objects to work with them one at a time.
[caption id="attachment_31527" align="alignnone" width="306" caption="Selection Pane"][/caption]
Even if you intend to stack your objects, when you want to apply animation, it’s sometimes best to spread them out. The problem is the nudging and tweaking to align them just right after you fix them. To get an exact one on top of the other stack, such as complete screen shots, use Align Center and Align middle. HINT: Align Center aligns horizontally. Align Middle aligns vertically.
[caption id="attachment_31528" align="alignnone" width="315" caption="Aligning Center and Middle"][/caption]
If you have two objects that should be exactly the same size, but aren’t. Don’t drive yourself crazy clicking and dragging the sizing handles. Look up and to the right on the Drawing Tools Format contextual tab on the far right, you’ll see the Shape Height and Shape Width fields. Use these instead to get exactly the sizing you want. For additional sizing options, click the dialog box launcher.