.
Aligns selected objects with each other using the control with the white grab handles as the reference.
Lefts
Aligns the horizontal position of the selected objects, putting the left-most edges in line with the control with the white grab handles.
Toolbar shortcut: .
Centers
Aligns the horizontal position of the selected objects, putting the centers in line with the control with the white grab handles.
Toolbar shortcut: 
.
Rights
Aligns the horizontal position of the selected objects, putting the right-most edges in line with the control with the white grab handles.
Toolbar shortcut: 
.
Tops
Aligns the vertical position of the selected objects, putting the tops in line with the control with the white grab handles.
Toolbar shortcut: 
.
Middles
Aligns the vertical position of selected objects, putting the middles in line with the control with the white grab handles.
Toolbar shortcut: 
.
Bottoms
Aligns the vertical position of the selected objects, putting the bottoms in line with the control with the white grab handles.
Toolbar shortcut: 
.
To Grid
Aligns the top left of the selected objects to the closest grid. The object is not resized.
Toolbar shortcut: 
.