When you add objects to your Presentation - images, text boxes, or shapes, they can overlap. You can change the way objects overlap with Send to Back and Bring to Front to change the stacking order.:
1. Select the object.
2. On the Shapes tab, swipe the toolbar to reveal more options. Select an option:
- Bring to Front: move the object to the top layer of the stack.
Bring Forward: move the object up one layer in the stack.
- Send to Back: move the object to the bottom layer of the stack.
Send Backward: move the object down one layer in the stack.