You can align elements vertically or horizontally. When you align
selected elements, they align to the diagram element that you select last
and that has filled sizing handles. Grouped diagram elements, that you select
by using the Marquee selection tool in the
Palette, are
aligned by the boundary of the group, not by the individual diagram elements
in the group.
You can also use rulers and guidelines or a grid coordinate
system to align the elements in a diagram.
To align diagram elements: