The Layout | Arrange | Bring to Front | Bring Forward command or the moves the selected objects forward one position. Alternatively, right-click the object and select Order Objects | Bring Forward.
Objects can also be moved by dragging them to a new position in the Contents window.
The default keyboard shortcut for the Layout | Arrange | Bring to Front | Bring Forward command is CTRL + PAGE UP. The keyboard shortcuts can be customized with the Customize command.
In the left drawing, the red square is located behind all the other objects. Use Bring Forward to move the square forward one layer so that it appears between the circle and the triangle (middle drawing). Clicking Bring Forward again places the square on top of the other objects (right drawing). Bring to Front places the square on top of the other objects.