Wall of concrete blocks dynamic component

[cuteajax]

I've being trying to design a dynamic component of a properly scalable wall built with 9"x18"x9" concrete block but i've not being able to figure out how to do it. Can i get a helping hand here please. Please see the picture below for my attempt. I also attached the sketchup file to give you a head start. Thank you in advance.And just one more thing, I will appreciate it if apart from accurate scalling, I can also chose two options of thickness for my block. One (default) to be 9" and the other option is 6". Please make it compatible with Version 8 of Sketchup. Thanks again.

[img]C:\document\concrete%20blocks.jpg[/img]

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block.skp

[pcmoor]

I would refer you to a similar post
http://sketchucation.com/forums/viewtopic.php?f=289%26amp;t=63127

please read

I attached a version 8 copy

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version 8

[cuteajax]

This is perfect. Thank you very much. I believe I can safely say, "case closed"