setting a scsi id for a newly added disk for VMs through script

Hi Experts ,

I was using the below scripts to add multiple disks to multiple VMs
http://blog.mattvogt.net/2013/03/14/powercli-mass-add-hard-disks/

But currently our requirement change like if we need to add 3 disks of 2 gb , the disks must the controller Use SCSI (1:0) - (1:2)

And next bunch of disks for example should use Use SCSI (2:0) - (2:2).

Is there any option for setting this SCSI ids while adding new disks.
Please let me know if there is any way we can accomplish through scripts.

Thanks in Advance.

Regards,
Sourav