Choose View > Tabs > Align to open the Align tab (also known as Align Ace). This tab allows you to align two or more selected items to each other, or to a specific coordinate in your scene.
The Options menu contains the following commands:
There are three different methods used for repositioning objects in the Align tab: Align, Stack, and Distribute. These options are shown in the figure below.
Click on the following links for more on the Align Ace options: