true if you can align selected objects based on one of them; otherwise, false. The default value is false.
When setting this property to true if there are multiple selected objects, you can align them based on a target alignment object. The target is one of the selected objects which by default is the last object added to the container. You can select the target alignment object by clicking on it when its grouped in a selection rectangle.
The alignment target object will be highlighted by a blue rectangle. You can change the way it highlights by overriding RenderAlignmentTarget method.
The alignment methods you can use are as follows: