What is the command line for align simulink blocks

I would like to ask a question about the building of a simulink model through command-line. What is the command-line for align blocks (in particular Align Centers Horizontally) in matlab r2011b? How can I obtain the same result as doing the following steps using the mouse? 1. Select desired blocks; 2. Format -> Align Blocks -> Align Centers Horizontally.

For example, if I have a constant and a scope block linked by a line what is the command-line for align blocks (in particular Align Centers Horizontally)? I’ve done a careful research in the Matlab & Simulink Help Section and in internet but I’ve found only information about command-line alignment in GUI and text. Looking forward to getting a kind reply, I thank you in advance for your attention.