The Align flyout, available from the main toolbar, provides access to six different tools for aligning objects.
From top to bottom, these are:
Align lets you align the current selection to a target selection. After selecting an object to align, you click Align, available on the Align flyout, 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' pivots. If the current selection comprises multiple objects or sub-objects, Quick Align aligns the source's selection center with the pivot of the target object.
Normal Align uses the Normal Align dialog to align two objects based on the direction of the normal 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.
Place Highlight, available from the Align flyout, enables you to align a light or object to another object so that its highlight or reflection can be precisely positioned.
Align Camera, available from the Align flyout, lets you align a camera to a selected face normal.
Align to View, available from the Align flyout, displays the Align To View dialog, which lets you align the local axis of an object or sub-object selection with the current viewport.
