To move a shape one level backwards relative to another object, select it and do one of the following:

•On the Home tab, in the Arrange group, click  Send backward or click the arrow to the right of the  Send backward button and select Send backward from the drop-down list.

•Right-click the shape to open the the context menu and select Send backward.

•When working in macOS, run the Format > Arrange > Send backward command from the command menu.

•Press Ctrl+[ in English keyboard layout (Windows, Linux) or  Option+ Shift+ Cmd+B (macOS).

To place the shape behind the other objects, select it and do one of the following:

•On the Home tab, in the Arrange group, click the arrow to the right of the  Send backward button. In the drop-down list, select Send to back.

•Right-click the shape to open the the context menu and select Send to back.

•When working in macOS, run the Format > Arrange > Send to back command from the command menu.

•Press Ctrl+Shift+[ in English keyboard layout (Windows, Linux) or  Shift+ Cmd+B (macOS).