Align lets you align the current selection to a target selection. After selecting an object to align, you click Align, available on the , and then select another object to align the first object to. This opens the Align dialog with the name of the target object on its title bar. When performing sub-object alignment, the title bar of the Align dialog reads "Align Sub-Object Selection."
Quick Align lets you instantly align the position of the current selection to that of a target object. If the current selection is a single object, Quick Align uses the two objects' . If the current selection comprises multiple objects or sub-objects, Quick Align aligns the source's with the pivot of the target object.
Normal Align uses the Normal Align dialog to align two objects based on the direction of the of a face or selection on each object. To open the Normal Align dialog, select the object to be aligned, click a face on the object, and then click a face on a second object. Upon releasing the mouse, the Normal Align dialog appears.