After you create a SmartArt graphic, you can add, remove, change, or rearrange shapes to create a custom look. For shapes within a SmartArt graphic, you can change the shape from the Shape gallery or use familiar commands—such as Bring to Front, Send to Back, Align, Group, and Rotate—to create your own custom SmartArt graphic. If you no longer want a shape you’ve added, simply select it, and then press Delete to remove it.
Select the shape in the SmartArt graphic you want to modify.
Click the Design tab under SmartArt Tools.
Click the Add Shape button to insert a shape at the ...